I bought into the BenQ monitors as they state they are flicker free. It's been sitting on my desk for over a year, but I hardly used it. I finally sat down with it to update my PC and just surf the web. I noticed over time I got tired looking at the screen.
I was playing Overwatch on my 2016 LG LCD TV with no issues all night long. I'd stare back the BenQ and I'd notice the difference.
I don't know if this makes sense to anyone, but have you ever gotten the feeling/sensation when staring at a troublesome screen that you're seeing "moving fuzz" even on still images?