Hello ive got exactly the same issue ive upgraded to iOS 15 beta 4 on my xs pro and since I’ve been experiencing a lot of touch screen issues and especially with 3D Touch. most of 3D Touch were sensitivity related and I mean that even with a real soft touch it acted as I’ve pushed hard on the screen. after disabling and upgrading to beta 5 public, the right side of the screen does not work anymore. I can’t desactivate Live Photo or type a p. On note i can ser IT goed all Along the border of the screen. i does try to reset setting but did not help anyone?

Any progress on this? I've received 2 updates (beta 5 & 6) and made a reset of the settings only without success anyone on this? @lukas1337?