diff --git a/app/assets/javascripts/import_entities/import_projects/index.js b/app/assets/javascripts/import_entities/import_projects/index.js
index 110cc77b20d..5146a0eb461 100644
--- a/app/assets/javascripts/import_entities/import_projects/index.js
+++ b/app/assets/javascripts/import_entities/import_projects/index.js
@@ -16,12 +16,13 @@ export function initStoreFromElement(element) {
     jobsPath,
     importPath,
     namespacesPath,
+    defaultTargetNamespace,
     paginatable,
   } = element.dataset;
 
   return createStore({
     initialState: {
-      defaultTargetNamespace: gon.current_username,
+      defaultTargetNamespace,
       ciCdOnly: parseBoolean(ciCdOnly),
       canSelectNamespace: parseBoolean(canSelectNamespace),
       provider,
diff --git a/app/assets/javascripts/reports/components/summary_row.vue b/app/assets/javascripts/reports/components/summary_row.vue
index 6b7d81c4878..7419b5b59d6 100644
--- a/app/assets/javascripts/reports/components/summary_row.vue
+++ b/app/assets/javascripts/reports/components/summary_row.vue
@@ -1,7 +1,7 @@
 <script>
 import { GlLoadingIcon } from '@gitlab/ui';
 import CiIcon from '~/vue_shared/components/ci_icon.vue';
-import Popover from '~/vue_shared/components/help_popover.vue';
+import HelpPopover from '~/vue_shared/components/help_popover.vue';
 import { ICON_WARNING } from '../constants';
 
 /**
@@ -16,7 +16,7 @@ export default {
   name: 'ReportSummaryRow',
   components: {
     CiIcon,
-    Popover,
+    HelpPopover,
     GlLoadingIcon,
   },
   props: {
@@ -79,7 +79,7 @@ export default {
       <div class="report-block-list-issue-description-text" data-testid="summary-row-description">
         <slot name="summary">{{ summary }}</slot
         ><span v-if="popoverOptions" class="text-nowrap"
-          >&nbsp;<popover v-if="popoverOptions" :options="popoverOptions" class="align-top" />
+          >&nbsp;<help-popover v-if="popoverOptions" :options="popoverOptions" class="align-top" />
         </span>
       </div>
     </div>
diff --git a/app/controllers/import/base_controller.rb b/app/controllers/import/base_controller.rb
index 936ecc171d7..51ca12370e6 100644
--- a/app/controllers/import/base_controller.rb
+++ b/app/controllers/import/base_controller.rb
@@ -13,7 +13,13 @@ class Import::BaseController < ApplicationController
                        provider_repos: serialized_provider_repos,
                        incompatible_repos: serialized_incompatible_repos }
       end
-      format.html
+      format.html do
+        if params[:namespace_id]&.present?
+          @namespace = Namespace.find_by_id(params[:namespace_id])
+
+          render_404 unless current_user.can?(:create_projects, @namespace)
+        end
+      end
     end
   end
 
diff --git a/app/controllers/import/github_controller.rb b/app/controllers/import/github_controller.rb
index c427fa5f298..9bd8f893614 100644
--- a/app/controllers/import/github_controller.rb
+++ b/app/controllers/import/github_controller.rb
@@ -23,24 +23,25 @@ class Import::GithubController < Import::BaseController
     if !ci_cd_only? && github_import_configured? && logged_in_with_provider?
       go_to_provider_for_permissions
     elsif session[access_token_key]
-      redirect_to status_import_url
+      redirect_to status_import_url(namespace_id: params[:namespace_id])
     end
   end
 
   def callback
-    auth_state = session[auth_state_key]
-    session[auth_state_key] = nil
+    auth_state = session.delete(auth_state_key)
+    namespace_id = session.delete(:namespace_id)
+
     if auth_state.blank? || !ActiveSupport::SecurityUtils.secure_compare(auth_state, params[:state])
       provider_unauthorized
     else
       session[access_token_key] = get_token(params[:code])
-      redirect_to status_import_url
+      redirect_to status_import_url(namespace_id: namespace_id)
     end
   end
 
   def personal_access_token
     session[access_token_key] = params[:personal_access_token]&.strip
-    redirect_to status_import_url
+    redirect_to status_import_url(namespace_id: params[:namespace_id].presence)
   end
 
   def status
@@ -209,8 +210,8 @@ class Import::GithubController < Import::BaseController
     public_send("new_import_#{provider_name}_url", extra_import_params) # rubocop:disable GitlabSecurity/PublicSend
   end
 
-  def status_import_url
-    public_send("status_import_#{provider_name}_url", extra_import_params) # rubocop:disable GitlabSecurity/PublicSend
+  def status_import_url(namespace_id: nil)
+    public_send("status_import_#{provider_name}_url", extra_import_params.merge({ namespace_id: namespace_id })) # rubocop:disable GitlabSecurity/PublicSend
   end
 
   def callback_import_url
@@ -256,6 +257,7 @@ class Import::GithubController < Import::BaseController
 
   def provider_auth
     if !ci_cd_only? && session[access_token_key].blank?
+      session[:namespace_id] = params[:namespace_id]
       go_to_provider_for_permissions
     end
   end
diff --git a/app/views/admin/application_settings/_sentry.html.haml b/app/views/admin/application_settings/_sentry.html.haml
index 5fd373d59e9..cfd34f6ca15 100644
--- a/app/views/admin/application_settings/_sentry.html.haml
+++ b/app/views/admin/application_settings/_sentry.html.haml
@@ -1,4 +1,4 @@
-= form_for @application_setting, url: metrics_and_profiling_admin_application_settings_path(anchor: 'js-sentry-settings'), html: { class: 'fieldset-form', id: 'sentry-settings' } do |f|
+= gitlab_ui_form_for @application_setting, url: metrics_and_profiling_admin_application_settings_path(anchor: 'js-sentry-settings'), html: { class: 'fieldset-form', id: 'sentry-settings' } do |f|
   = form_errors(@application_setting)
 
   %span.text-muted
@@ -6,9 +6,7 @@
 
   %fieldset
     .form-group
-      .form-check
-        = f.check_box :sentry_enabled, class: 'form-check-input'
-        = f.label :sentry_enabled, _('Enable Sentry error tracking'), class: 'form-check-label'
+      = f.gitlab_ui_checkbox_component :sentry_enabled, _('Enable Sentry error tracking')
     .form-group
       = f.label :sentry_dsn, _('DSN'), class: 'label-light'
       = f.text_field :sentry_dsn, class: 'form-control gl-form-input', placeholder: 'https://public@sentry.example.com/1'
diff --git a/app/views/import/_githubish_status.html.haml b/app/views/import/_githubish_status.html.haml
index 8f18d68fd55..08f7cd57732 100644
--- a/app/views/import/_githubish_status.html.haml
+++ b/app/views/import/_githubish_status.html.haml
@@ -3,6 +3,7 @@
 - extra_data = local_assigns.fetch(:extra_data, {})
 - filterable = local_assigns.fetch(:filterable, true)
 - paginatable = local_assigns.fetch(:paginatable, false)
+- default_namespace_path = (local_assigns[:default_namespace] || current_user.namespace).full_path
 - provider_title = Gitlab::ImportSources.title(provider)
 
 - header_title _("New project"), new_project_path
@@ -14,6 +15,7 @@
                                namespaces_path: import_available_namespaces_path,
                                repos_path: url_for([:status, :import, provider, format: :json]),
                                jobs_path: url_for([:realtime_changes, :import, provider, format: :json]),
+                               default_target_namespace: default_namespace_path,
                                import_path: url_for([:import, provider, format: :json]),
                                filterable: filterable.to_s,
                                paginatable: paginatable.to_s }.merge(extra_data) }
diff --git a/app/views/import/github/new.html.haml b/app/views/import/github/new.html.haml
index ef6479f8be2..fbb27ba620a 100644
--- a/app/views/import/github/new.html.haml
+++ b/app/views/import/github/new.html.haml
@@ -10,7 +10,7 @@
   = import_github_authorize_message
 
 - if github_import_configured? && !has_ci_cd_only_params?
-  = link_to status_import_github_path, class: 'gl-button btn btn-confirm' do
+  = link_to status_import_github_path(namespace_id: params[:namespace_id]), class: 'gl-button btn btn-confirm' do
     = sprite_icon('github', css_class: 'gl-mr-2')
     = title
 
@@ -23,6 +23,7 @@
 = form_tag personal_access_token_import_github_path, method: :post do
   .form-group
     %label.label-bold= _('Personal Access Token')
+    = hidden_field_tag(:namespace_id, params[:namespace_id])
     = text_field_tag :personal_access_token, '', class: 'form-control gl-form-input', placeholder: _('e.g. %{token}') % { token: '8d3f016698e...' }, data: { qa_selector: 'personal_access_token_field' }
     %span.form-text.text-muted
       = import_github_personal_access_token_message
diff --git a/app/views/import/github/status.html.haml b/app/views/import/github/status.html.haml
index 820c2f06c8f..26b048c8195 100644
--- a/app/views/import/github/status.html.haml
+++ b/app/views/import/github/status.html.haml
@@ -7,4 +7,4 @@
 
 - paginatable = Feature.enabled?(:remove_legacy_github_client)
 
-= render 'import/githubish_status', provider: 'github', paginatable: paginatable
+= render 'import/githubish_status', provider: 'github', paginatable: paginatable, default_namespace: @namespace
diff --git a/app/views/projects/_import_project_pane.html.haml b/app/views/projects/_import_project_pane.html.haml
index 87e4d30ad80..af7509d1afe 100644
--- a/app/views/projects/_import_project_pane.html.haml
+++ b/app/views/projects/_import_project_pane.html.haml
@@ -1,5 +1,6 @@
 - active_tab = local_assigns.fetch(:active_tab, 'blank')
 - track_label = local_assigns.fetch(:track_label, 'import_project')
+- namespace_id = local_assigns.fetch(:destination_namespace_id, nil)
 
 .project-import
   .form-group.import-btn-container.clearfix
@@ -16,7 +17,7 @@
 
       - if github_import_enabled?
         %div
-          = link_to new_import_github_path, class: 'gl-button btn-default btn js-import-github js-import-project-btn', data: { platform: 'github', **tracking_attrs_data(track_label, 'click_button', 'github') } do
+          = link_to new_import_github_path(namespace_id: namespace_id), class: 'gl-button btn-default btn js-import-github js-import-project-btn', data: { platform: 'github', **tracking_attrs_data(track_label, 'click_button', 'github') } do
             .gl-button-icon
               = sprite_icon('github')
             GitHub
diff --git a/config/feature_flags/development/fix_related_environments_for_merge_requests.yml b/config/feature_flags/development/fix_related_environments_for_merge_requests.yml
index 18826436db5..d958f1d4de0 100644
--- a/config/feature_flags/development/fix_related_environments_for_merge_requests.yml
+++ b/config/feature_flags/development/fix_related_environments_for_merge_requests.yml
@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/356642
 milestone: '14.10'
 type: development
 group: group::release
-default_enabled: false
+default_enabled: true
diff --git a/spec/controllers/import/github_controller_spec.rb b/spec/controllers/import/github_controller_spec.rb
index fe03039ddcc..ef66124bff1 100644
--- a/spec/controllers/import/github_controller_spec.rb
+++ b/spec/controllers/import/github_controller_spec.rb
@@ -82,11 +82,33 @@ RSpec.describe Import::GithubController do
         expect(controller).to redirect_to(new_import_url)
         expect(flash[:alert]).to eq('Access denied to your GitHub account.')
       end
+
+      it "includes namespace_id from session if it is present" do
+        namespace_id = 1
+        session[:namespace_id] = 1
+
+        get :callback, params: { state: valid_auth_state }
+
+        expect(controller).to redirect_to(status_import_github_url(namespace_id: namespace_id))
+      end
     end
   end
 
   describe "POST personal_access_token" do
     it_behaves_like 'a GitHub-ish import controller: POST personal_access_token'
+
+    it 'passes namespace_id param as query param if it was present' do
+      namespace_id = 5
+      status_import_url = public_send("status_import_#{provider}_url", { namespace_id: namespace_id })
+
+      allow_next_instance_of(Gitlab::LegacyGithubImport::Client) do |client|
+        allow(client).to receive(:user).and_return(true)
+      end
+
+      post :personal_access_token, params: { personal_access_token: 'some-token', namespace_id: 5 }
+
+      expect(controller).to redirect_to(status_import_url)
+    end
   end
 
   describe "GET status" do
diff --git a/spec/frontend/reports/components/summary_row_spec.js b/spec/frontend/reports/components/summary_row_spec.js
index 04d9d10dcd2..778660d9e44 100644
--- a/spec/frontend/reports/components/summary_row_spec.js
+++ b/spec/frontend/reports/components/summary_row_spec.js
@@ -1,25 +1,26 @@
 import { mount } from '@vue/test-utils';
 import { extendedWrapper } from 'helpers/vue_test_utils_helper';
+import HelpPopover from '~/vue_shared/components/help_popover.vue';
 import SummaryRow from '~/reports/components/summary_row.vue';
 
 describe('Summary row', () => {
   let wrapper;
 
-  const props = {
-    summary: 'SAST detected 1 new vulnerability and 1 fixed vulnerability',
-    popoverOptions: {
-      title: 'Static Application Security Testing (SAST)',
-      content: '<a>Learn more about SAST</a>',
-    },
-    statusIcon: 'warning',
+  const summary = 'SAST detected 1 new vulnerability and 1 fixed vulnerability';
+  const popoverOptions = {
+    title: 'Static Application Security Testing (SAST)',
+    content: '<a>Learn more about SAST</a>',
   };
+  const statusIcon = 'warning';
 
-  const createComponent = ({ propsData = {}, slots = {} } = {}) => {
+  const createComponent = ({ props = {}, slots = {} } = {}) => {
     wrapper = extendedWrapper(
       mount(SummaryRow, {
         propsData: {
+          summary,
+          popoverOptions,
+          statusIcon,
           ...props,
-          ...propsData,
         },
         slots,
       }),
@@ -28,6 +29,7 @@ describe('Summary row', () => {
 
   const findSummary = () => wrapper.findByTestId('summary-row-description');
   const findStatusIcon = () => wrapper.findByTestId('summary-row-icon');
+  const findHelpPopover = () => wrapper.findComponent(HelpPopover);
 
   afterEach(() => {
     wrapper.destroy();
@@ -36,7 +38,7 @@ describe('Summary row', () => {
 
   it('renders provided summary', () => {
     createComponent();
-    expect(findSummary().text()).toContain(props.summary);
+    expect(findSummary().text()).toContain(summary);
   });
 
   it('renders provided icon', () => {
@@ -44,12 +46,22 @@ describe('Summary row', () => {
     expect(findStatusIcon().classes()).toContain('js-ci-status-icon-warning');
   });
 
+  it('renders help popover if popoverOptions are provided', () => {
+    createComponent();
+    expect(findHelpPopover().props('options')).toEqual(popoverOptions);
+  });
+
+  it('does not render help popover if popoverOptions are not provided', () => {
+    createComponent({ props: { popoverOptions: null } });
+    expect(findHelpPopover().exists()).toBe(false);
+  });
+
   describe('summary slot', () => {
     it('replaces the summary prop', () => {
       const summarySlotContent = 'Summary slot content';
       createComponent({ slots: { summary: summarySlotContent } });
 
-      expect(wrapper.text()).not.toContain(props.summary);
+      expect(wrapper.text()).not.toContain(summary);
       expect(findSummary().text()).toContain(summarySlotContent);
     });
   });
diff --git a/spec/support/shared_examples/controllers/githubish_import_controller_shared_examples.rb b/spec/support/shared_examples/controllers/githubish_import_controller_shared_examples.rb
index 0088cf86493..2ea98002de1 100644
--- a/spec/support/shared_examples/controllers/githubish_import_controller_shared_examples.rb
+++ b/spec/support/shared_examples/controllers/githubish_import_controller_shared_examples.rb
@@ -184,6 +184,41 @@ RSpec.shared_examples 'a GitHub-ish import controller: GET status' do
         expect(json_response.dig("provider_repos").count).to eq(1)
       end
     end
+
+    context 'when namespace_id query param is provided' do
+      let_it_be(:current_user) { create(:user) }
+
+      let(:namespace) { create(:namespace) }
+
+      before do
+        allow(controller).to receive(:current_user).and_return(current_user)
+      end
+
+      context 'when user is allowed to create projects in this namespace' do
+        before do
+          allow(current_user).to receive(:can?).and_return(true)
+        end
+
+        it 'provides namespace to the template' do
+          get :status, params: { namespace_id: namespace.id }, format: :html
+
+          expect(response).to have_gitlab_http_status :ok
+          expect(assigns(:namespace)).to eq(namespace)
+        end
+      end
+
+      context 'when user is not allowed to create projects in this namespace' do
+        before do
+          allow(current_user).to receive(:can?).and_return(false)
+        end
+
+        it 'renders 404' do
+          get :status, params: { namespace_id: namespace.id }, format: :html
+
+          expect(response).to have_gitlab_http_status :not_found
+        end
+      end
+    end
   end
 end