Interesting story, I am curious what you will notice in the coming days.
Anyway, when I have replaced my screen bought at Aliexpress, the problem was disappeared without any modification in software.
However, when I have opened the phone and separated the display of its frame, I have noticed at one of the top/bottom edges (I mean at sorter side), maybe near the place where ghost inputs became better after I touched it - I am unsure if it was the opposite side or the bottom what helped when I pressed it...
...so I have noticed some (relatively high amount of) pocket dirt-like dir