A trusted third party has a copy of the physical key to my flat. I handed them over once and they still work. I can print out the passwords and 2FA keys required to recover the most basic services (such as primary email and password manager) — as long as I don't change the credentials, it will keep working. But if I use passkeys stored on device, what are my recovery options? Do I need to retrieve the backup device every time I create a new passkey?