Do you own a device that has FaceID???FaceID on a laptop is a dumb idea for a couple of reasons. For it to work on your phone, you need to aim it at your head. If you miss, you move your hand a little. On a laptop, this will require you to monkey around with the angle of the display or your position in front of the camera. It's just not going to be nearly as seamless.
And for some things, you need to indicate positive acknowledgement rather than just having it passively allow something. That means pushing a key... which is really the same thing as touch ID.
The unlocking angles on my phone 12 are insane and quick.
On a computer you usually press the "ENTER" key for positive acknowledgment....