Using the new check method

This method checks if the applying text is there.
If not, it checks for the applied badge.

qa/qa/page/merge_request/show.rb

@@ -365,7 +365,7 @@ module QA
           all_elements(:add_suggestion_batch_button, minimum: 1).first.click
         end
 
-        def has_suggestions_applied?(count)
+        def has_suggestions_applied?(count = 1)
           wait_until(reload: false) do
             has_no_element?(:applying_badge)
           end

qa/qa/specs/features/browser_ui/3_create/merge_request/suggestions/custom_commit_suggestion_spec.rb

@@ -48,7 +48,7 @@ module QA
           merge_request.click_diffs_tab
           merge_request.apply_suggestion_with_message(commit_message)
 
-          expect(merge_request).to have_css('.badge-success', text: 'Applied')
+          expect(merge_request).to have_suggestions_applied
 
           merge_request.click_commits_tab