PublicKeyCredentialHint

Categories of authenticators that Relying Parties can pass along to browsers during registration. Browsers that understand these values can optimize their modal experience to start the user off in a particular registration flow:

• hybrid: A platform authenticator on a mobile device
• security-key: A portable FIDO2 authenticator capable of being used on multiple devices via a USB or NFC connection
• client-device: The device that WebAuthn is being called on. Typically synonymous with platform authenticators

These values are less strict than authenticatorAttachment