Well that’s why you should have software 2FA and even backing up the tokens so you can generate that one time code even if you lost access to your main authenticator, having your phone as the only 2FA is like having those yubikey hardware used as 2FA without making a redundant one, losing it, you lost access, which is usually known since no one would use yubikey without being tech savvy to start with, now google or other companies are turning phones as an attestation method for the crowd, you might soon in the future become citizen-less because your digital ID can only be proven in the lost phone.