If you are concerned with lockout and want offline, interoperable backups of your 2auth codes I strongly recommend Raivo. It can’t import from google authentica

If you are concerned with lockout and want offline, interoperable backups of your 2auth codes I strongly recommend Raivo. It can’t import from google authenticator directly, but it’s possible to extract the secrets with some docker script, and then enter them manually into Raivo.