That’s really unusual. My experience has been the opposite on Linux Mint, most games run the same or better than when I was on windows. I had a little bit of trouble getting world of warcraft to work at first, but I was mostly done playing that anyway. I guess it’s all down to what games you play.
The operative word is “mandatory”. Medical professionals should have a level of discretion available to them, since not all treatments work for all people, even if it wasn’t such an ineffective treatment being discussed.