And for authenticators that do not allow to export the secret, while your authenticator is not lost yet, add another authenticator: and during registration, save the QR code.
There is no option to add another authenticator app at https://myaccount.google.com/security (desktop UI). I think the only feasible option is to first remove Google Authenticator and then re-enable it.
Seriously, Google?
Might be micro, but this is not a sign of a healthy company on an upwards trajectory.
