I vote Fedora as well, I love it having come from windows myself about a year ago. Not a big gamer anymore, but can confirm Minecraft runs well on Fedora KDE Plasma and looks similar to windows. I am a homelabber by hobby and an electrical engineer by trade. I do a bit of light CS and networking/SCADA for in my job. Understanding Unix-based systems is helpful for both realms. If your friend is a CS student and doesn’t have a PC already as a daily driver, this is THE time to get into Linux in my opinion since they are a blank canvas. I’m of the opinion knowing Unix-based systems, like Linux is only going to help you later in your career so might as well learn it now. Haha