Friends at LAN parties complained how ugly it was and my rebuttal was usually: "I'm afraid it stays unless you can buy me a better video card." The fact that the CRT slowly drifted to a yellow tinge on everything didn't help the asethetics--especially on de_dust. The GPU at the time might have been a Riva 128 ZX.
Video: https://www.youtube.com/watch?v=8TvVMzyxACc
Browser(shareware): https://quake-srp.pages.dev/
I love the graphics in your video, really interesting and fit the vibe of the original game too.