Anyone on here wanting to test if they have screen protector touch issues, should lay there iPad on its back, screen up on the carpet, or a rug. Then try to use the device while only touching the screen with one finger. If it has any issues at all, then the screen protector is affecting the touch sensitivity. To fix this while it is in this type of position for future reference; You can just barely touch your finger on the camera cutout, or the metal bezel anywhere. And touch response will be perfect again, but you must hold your finger on the bezel lol to have perfect touch response.
This is why problems do not happen when your holding the iPad. Because you are touching the bezel constantly.
It is hit or miss with screen protectors. I installed (2) identical screen protectors on a 512GB 11”, and my 1TB 11” iPad Pro. Mine has had zero problems, but my brothers iPad was having those funny easily repeated screen protector issues.
I’ve explained it to him, I’ve personally tested the iPad for over a week to confirm it has no touch bug, beyond this screen protector. And he’s just gonna leave the screen protector on there.