The whole idea of Passkey is that the credentials are syncable. The main implementations of passkey are probably going to be Platforms (Google/Apple/Microsoft)

The whole idea of Passkey is that the credentials are syncable. The main implementations of passkey are probably going to be Platforms (Google/Apple/Microsoft) and Password Managers. In both cases the credentials will be syncable and tied to a centralized service. The main difference with passwords is that passkey are not phishable (since you never send them to the website you authenticate to)