I stopped using OAuth "Sign in with..." because I kept of forgetting which provider I used for which website, and started recording it in my password manager. Realising how silly this was I went back to my password manager with website specific usernames and passwords.
Exact same issue here, i love the idea of it but until there is a universal OAuth I will stop using it. I’ve also not deleted Facebook despite mostly wanting to because I know it’s my OAuth for many services and some make it very hard to change.
