[Alex3917]

Fair enough. But regardless, Apple is describing it as performing a full backup, when in reality there is no way to restore your phone to its previous state.

It doesn't matter how the phone works or how the apps work. If you can't restore, you don't have a backup. End of story.

[dwaite]

Google Authenticator almost certainly doesn't store its TOTP state on the filesystem - it is in the secure enclave. I don't use Authenticator so I can't guess whether they marked its state as exportable.