There is a reason why Google is going with a giant top bezel on the Pixel 4, in times where the Note 10 will be the most compact large-screen phone in our database precisely on account of the shaved-off strip there. No, that reason is not a 3D face-scanning kit, although there will be one, and Google is collecting faces to perfect it at $5 a pop.
Hand gestures come more natural than pushing against a piece of glass, yet so far the technology for their recognition on a phone has been imperfect as it relied on camera sensors.