On the other hand, a family member set up facebook with 2FA, but using a TOTP built into facebook (is this really a thing? It seems to be) -- such that when he

On the other hand, a family member set up facebook with 2FA, but using a TOTP built into facebook (is this really a thing? It seems to be) -- such that when he switched computers and facebook decided he needed to re-auth, he couldn't get to the TOTP anymore. If this doesn't make any sense, it probably is because I have the details quite right, but the end result is I was unable to help him make any more sense of this, and there appears to be literally no way to regain access to his facebook account.