Here is an anecdote. I had my iPhone replaced last year due to a battery issue and I forgot to migrate my authenticator codes to the new phone (I did not realiz

Here is an anecdote. I had my iPhone replaced last year due to a battery issue and I forgot to migrate my authenticator codes to the new phone (I did not realize they did not restore if you changed phones). I was able to log in via a known authenticated web browser and reset my 2FA TOTP. I am a little hazy on if it used my mobile gmail app as a second factor though (with content restored from backup). I did not need my backup code. Perhaps it would be good to get an additional hardware security key for the account just in case.