It really depends on which features you are looking for. If you just want a solid editor with layers and plugins then gimp is pretty good. You can also try Krita for something a little less cumbersome.
Unfortunately most of the really nice editors are closed source and only mac/windows
These guys are the kind we need more of. Dwarf Fortress is very much a labor of love and well worth the price on Steam. They have over 20 years of development put into it and even though the steam version got a fresh coat of paint, the text mode version is still free.
Anyone curious about Dwarf Fortress should check out Kruggsmash on Youtube. He has been making Dwarf Fortress videos for years and really does a good job of revealing the stories that evolve during gameplay.
Most problems I run into with Linux are caused by me doing weird things. Linux doesn’t prevent you from messing with things you don’t understand but if you just want to use it as a standard desktop then you shouldn’t have many issues aside from finding replacement applications for things you are used to using.
If you decide to start tinkering, just keep a backup of your home directory since it contains all your settings and files.
Last time I did it was 2008 or 2009, the only game I played much was World of Warcraft and it ran great under WINE at the time. I don’t remember exactly why I switched back to windows back then but it was probably games. I know I needed it when I got my VR headset back in 2016 but it’s been a while since I sold that. I don’t know if Steam VR works on Linux or not, I want to have a headset again.
This year I went back to 100% Linux for my computers. I’ve kept my primary PC with Windows just for games but with the advancements that Proton has made to WINE it hasn’t been necessary. The only thing I miss in being able to use Affinity Publisher and Designer on the computer and not just my tablet.
You could accomplish something in a 20 minute session of D3. You could get a rift done, maybe two, get enough stuff to upgrade something or find a better piece of equipment. You can’t get anything worthwhile done in D4 with only 20 minutes.