Block Comments Accessibility: screen reader reads `Comment added successfully.' but the focus is lost

[jeffpaul]

Description

From @t-hamano in #71249 (comment):

Add a comment:
The screen reader reads `Comment added successfully.' but the focus is lost.

From @joedolson in #71249 (comment):

As observed, focus is lost. Focus is not lost when adding a comment reply, however. The loss of focus is fairly significant, since the next tab after loss of focus is the 'Resolve' button on the first comment. If you think you're still on the same comment, this might lead you to take the wrong action.

From @adamsilverstein in #71249 (comment):

Ensure focus is not lost when adding a comment. (question: does focus move the the comment? the input element disappears so my assumption is focus would move to the comment)

Step-by-step reproduction instructions

.

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure

[roseg43]

@jeffpaul I'm planning at looking at this issue, this week.

[Mamaduka]

Create a quick proof of concept in #72139, that is, using the recent focus utility, unfortunately it's not working yet 😓