It existed long ago , when phone was relesed.Yes, but I think and will be sure that it is a problem and bug of ios 18.0.1!
So , no , 18.0.1 was supposed to fix that , but it didnt.
Will it ever , we all dont know.
Is it hardware or a software thing we also dont know.
So that is about it.
Fiest it was said that its palm algorytham thing , trigered somehow by camera button , but we dont know.
For 20 days , we are olaying guessing here.
There are gys here who took of and then returned 20 screen protectors , just to see what is going on.