So this is not a major concern since it is a very easy fix (just lock the screen and open it again), this is more to gauge if anyone else is experiencing this as well.
So the actual problem? Sometimes when I just grab the phone (iPhone 16 PM, iOS 26.2) and the screen lights up the button for the flashlight in the bottom corner is unresponsive, like not answering at all. Like I said the fix is just darkening the screen and opening the screen again and the button is responsive again..