Google Authenticator can transfer details to a different phone these days.
You get a notification at the top of the App for a few days to alert you to the transfer.
You get a notification at the top of the App for a few days to alert you to the transfer.
https://apps.apple.com/us/app/google-authenticator/id3884976...
I, like others, stopped using this app because it had dangerous bugs (app could delete the wrong token) and several limitations.
Mobile BankID (Scandinavian Identity Service), my British Banking app and Okta verify definitely can't transfer to a new phone. I know because I checked recently.
My overall point is: they're not alone, this is a common issue for Apps.