Criminals would be delighted
“User passwords are typically the easiest point of attack", so it is recommended to use your face with the user password as a fallback means against false rejection so that you/criminal can log in either by your face (videoed face) or your password. Is this a wise idea?
This video explains how biomerics makes a backdoor to password-protected information.
https://youtu.be/5e2oHZccMe4