>The passkey has to be stored somewhere. Logically, that's in 1Password itself,
A Passkey is a WebAuthn-compliant[0] form of authentication which relies on biometric authentication combined with a key pair.[1] iCloud supports the ability to create passkeys, and allows users of Apple devices to use them to sign in by TouchID/FaceID. Another means to get a passkey is to purchase a physical WebAuthn-compliant hardware device, such as a Yubikey or a Google Titan Security Key.
A Passkey is a WebAuthn-compliant[0] form of authentication which relies on biometric authentication combined with a key pair.[1] iCloud supports the ability to create passkeys, and allows users of Apple devices to use them to sign in by TouchID/FaceID. Another means to get a passkey is to purchase a physical WebAuthn-compliant hardware device, such as a Yubikey or a Google Titan Security Key.
[0]: https://webauthn.guide/
[1]: https://support.apple.com/guide/mac-help/aside/glos0930f77c/...