/vr/ - Retro Games

I recently discovered qbism8 and have been messing around just to see what all the port offers. I found that in quite a few of the resolutions, the way the world gets rendered is sort of vertically squeezed, which brings my question: How accurate is this?

I've never seen anything like it in any ports, but I'm aware that the levels and artwork of Doom were designed knowing that CRT monitors would stretch the 320x200 output 20% upwards, and have never thought about if DOS or WinQuake were also made around this. The 2D menu elements do seem like they are on account of easier readability, but I'm not sure about the brushes and entities.