Guys if you are using a CRT monitor one your computers, have it at the highest frequency possible, like for 1600x1200 at 85Hz not 60Hz. I just switched and it felt like an epiphany, switching back now gives me headaches lol. That's especially true on blank static background, like an empty Office document. I was perfectly happy at 60Hz mind you, but switching back feels weird now.
In other news, Windows 10 is especially shitty at displaying non-native resolutions. Like my computer decided that 1600x1200 was the better resolution, and most lower resolutions are displayed in a 1600x1200 black frame. Some resolutions are spared, like 640x480 and 1024x768, but only if the refresh rate is set at 60Hz on the desktop. 320x200/640x400 and 800x600 are fucked up, which messes with quite a few older games.
I can't display DOSBox in its native resolution in fullscreen, I have to use the aspect ratio correction which adds some nasty interpolating lines to get from 400 to 480 vertically. I can use the 1600x1200 resolution, which is a nice 5/6 integer upscale so nothing is lost or added, but the image is way too sharp for my taste, a literal emulator bullshot. That old DOS computer can't get finished soon enough.