Depends on your security perspective. Your credentials are tied to a device. Some of those have device specific methods for backup/restore such keys. There are

Depends on your security perspective. Your credentials are tied to a device. Some of those have device specific methods for backup/restore such keys. There are some benefits too. If you passkey from Site A gets compromised, it doesn't affect other services. If the password gets compromised and you used it elsewhere too, you might run into problems. Services have the advantage of not having to store a password without needing to use external auth providers. Personally I use passwords. Personally I use passwords.