Google is doing their "deleting inactive account" thing.
I have some old gmail accounts that forward email to my main account. I don't login to the old ones, but I read the mail that comes through.
Does anyone know if they'll count those old ones as inactive and delete them?
It is virtually impossible to login to an old Google account for which you never set a recovery phone number - and completely impossible if you did set one but no longer own it.
And there is no human support of any kind at Google that you can discuss it with.