I included this Windows Hello settings page to show you the option to turn off automatically logging in once you are recognized. This is very handy when you first start up your system and is turned on by default.
If you were to log out of Windows 10 and be immediately recognized by Windows Hello you get a prompt to dismiss the lock screen manually as it is not handled automatically while you are still recognized by the camera.
You have to break that connection for the automatic dismissal to engage.