Mind you, there are two types of under screen fingerprint sensors: optical and ultrasonic.
Optical blasts the finger with light and forms a 2d scan. It’s pretty slow and arguably worse than conventional (capacitive) scanner on the back of the phone.
Ultrasonic, however, because it uses sound waves, maps a 3d scan. It is significantly faster than conventional scanner, and it also doesn’t care about your fingers being wet.
Ultrasonic sensor only requires a quick tap to unlock the phone. It’s actually really convenient to use, I like those. I’d take the capacitive sensor over optical one, though.
I think you’ll appreciate #ffcc66