I am using update email function in my app. It sends email and updates in authenticated collection with new mail before user verifies the sent mail. This causes issue such as if someone types wrong email address the authenticated collection is updated with wrong one and auth id (email password login of firebase auth-email) will be different. It should update after verification. I saw one documentation of update email but I think it is not updated by FF team.
https://docs.flutterflow.io/actions/actions/backend-database/firebase-authentication/update-email