Sadly, that full version isn't in 4K, unlike the submission.
But this is Hacker News, we can do much better! Here is the actual binary: https://www.pouet.net/prod.php?which=105954
Sadly I couldn't get it to work on Linux with Wine/Proton, like a lot of demos they seem to really be using less common paths, so of course it crashes.
Just install pirated Windows in a VM (really the only valid way to run Windows these days). Razor would approve.
the nfo notes >This demo will not run on intel iris gpus and only in 1080p