Is there a video somewhere (or easy download/install on linux) so I can see/play what this looks like

Shameless plug for my own project, Quake-SRP (the Slop Rust Port).

Video: https://www.youtube.com/watch?v=8TvVMzyxACc

Browser(shareware): https://quake-srp.pages.dev/

Source: https://github.com/terrapapagalli1516/quake-srp