Comment by DiabloD3

Are you an LLM? I feel we're talking past each other because you're obsessed with one kind of fatigue, and there many kinds of fatigue.

Your math only gives a 5 cm/2 inch change in focal distance on very large 21:9-or-wider screens, and it is well known that 21:9 or wider monitors cause eye fatigue due several reasons, only one of them is the one you speak of.

21:9 and wider monitors are very niche market, and aren't inherently worth discussing other than mentioning they're a good source of eye fatigue. The fix for them isn't buy curved ones, the fix is to not buy them.