I've had an account for a long time, pre-dating the ability to "Login with Google or Login with Facebook". I can still log in with my username and password. My account is tied to my gmail address. If at login I happen to click "Login with Google", it does in fact log me in, but to someone else's account. I don't recognize the Username or parts of the phone number. It also appears that the account has been in some trouble.
I can still login with my credentials but I don't have warm and fuzzy's about my Google Credentials being tied to some other account or potentially used for something nefarious. I'd like the link between my Google Credentials and that account broken and attached instead to my actual account. I keep trying to raise support but the bot just says they will call me in 2 minutes but I never hear anything.
