I had Prodeus wishlisted for years and when it finally released it was worth the wait. I absolutely loved it. Haven’t played Ultrakill though… Maybe I’ll queue it up next!
I’m running via steam/proton, and I’ve encountered the situation you describe twice. Both times were after playing for several hours. Being difficult to reproduce, it hasn’t bothered me much.
Imagine being a company known for creating games that are a steal when they are 50% off a few years after release.