I‘m was using two old servers with folding@home running as space heaters in the winter. I got them for dirt cheap and thought if I convert electricity into heat, I might as well do something good with it. Also nice opportunity to run a minecraft server for the kids during that time.
As someone regularly using Arch, Ubuntu, MacOS and Windows I agree.
The advances Linux has made, especially in the last few years is just amazing. I can run the majority of my games through Proton, there are even some preconfigured packages with Illustrator and Photoshop CC that Adobe doesn‘t seem to care about at all.