If the device you are currently using doesn't support passkeys, the option to add a passkey or delete your existing passkeys will be unavailable. To add or delete a passkey on your account, please sign in to your account from a device that supports passkeys.
Devices typically support passkeys when they have a fingerprint scanner or the ability to scan your face for face ID. Some password managers may also be used for passkeys. If you think your device should support passkeys, ensure that your browser is updated to its newest version.
What are passkeys?