Imagine taking the time to make some of the dither stay in one place, and not move with the camera : https://danielilett.com/2020-02-26-tut3-9-obra-dithering/
& https://forums.tigsource.com/index.php?topic=40832.msg1363742#msg1363742
Obra Dinn's visuals are some of the most impressive and well programmed dither shaders i've seen.