The passkey stored locally in some kind of hardware backed store on your device or in your password manager is the first factor: something you have.
The PIN/password or fingerprint/face to unlock the device and access the stored passkey is the second factor: something you know or something you are, respectively.
The passkey stored locally in some kind of hardware backed store on your device or in your password manager is the first factor: something you have.
The PIN/password or fingerprint/face to unlock the device and access the stored passkey is the second factor: something you know or something you are, respectively.
Two factors gets you to 2FA.