It depends what the account is!

I'm a bit scared about all my accounts. I do mot currently understand which account depends on what bit of information.

That leaves me vulnerable. For example, if this phone dies and Google starts asking me for a password and 2FA I have no idea what I'd do.

I have several pieces of hardware that I use to login across a wide range of accounts. I guess I need to print out a list of passwords and 2FA codes and set two phones as backup IDs.

I really wish someone would just fix authentication. :-/