I actually found the solution to this last time I had it. I get it all the time on legacy G Suite accounts that are still hanging around that I never log in to.

I actually found the solution to this last time I had it. I get it all the time on legacy G Suite accounts that are still hanging around that I never log in to. I think it's this link: https://accounts.google.com/signin/recovery https://accounts.google.com/signin/recovery (don't go through the usual forgot email/password process on the login page or you get that stupid AI loop). I think it helps to use Google Chrome too.