This video shows exactly what happens to me
This is definitely software related. Sometimes when I open a youtube link from a website it fails to maximise the video within the youtube app. The tap is registering since I can see the animation when clicking it but it fails to respond.
I then have to close the youtube app and open it again for it to work. Same happens when I’m browsing amazon, it won’t allow me to open links when I click on them. I have to long press it and choose to open in a new tab lol.
BTW I sold my 2018 ipad pro 12.9(with this issue) to get the 11 and same problem all over again.
imho this has nothing to do with touch screen or heat, it’s just that at some point the software becomes unresponsive and freezes in short intervals. This will also explain the stuttering experienced when typing.
The price to pay for constantly tweaking and messing around with things that work to begin with.
If you’re sitting at your desktop pc typing away and all of sudden the pc freezes , you’re not going to blame the keyboard and mouse being unresponsive.
The touch becoming unresponsive it’s not necessarily and indication of hardware problems.
One way to test this is if anyone that has an apple keyboard cover to see if there is a difference when typing with the physical keyboard vs the touch one.