Thanks to lovely "2FA" methods (more likely RFA) like described here, I am currently locked out of my 15+ year old Google account that I no longer use, as they require me to provide them a verification code from an old Android phone I sold over 5 years ago. I contacted Google support - they can't do nothing, even though I could provide every single piece of data about the account imaginable - including stuff like the IP ranges that the account was accessed from most of the time, devices linked etc. - sadly, I suspect no real human sits in front of their support chat...