Any credential system that makes it impossible to write something down on a piece of paper, take it to a new computer, and login to a website is just a gateway to vendor lock-in.

And don’t tell me that we can “securely transfer” the credential from one vendor to another, because that’s just a lock-in syndicate.

The “something” doesn’t have to be a password! It could be a UUID. It could be Base64. But “you’ll get nothing and like it” is not an acceptable alternative.