I’ve played a lot of Battle net games by installing battle net in lutris, then installing the game I want to play there. There’s a lot of scripts you can find for installing particular games. I can’t speak for whether HOTS works, but I played many many hours of WoW and Overwatch (before 2) that way. It’s annoying using a launcher to run a launcher to play your game, but it works.

I face the faucet, lean forward and put my head against the wall so the hot water runs over my neck and shoulders, then stay like that for like 20 minutes or longer.

I’ve been using Garuda for… Two or three years? I’ve done a lot of distro-hopping looking for something that won’t just break on me. I used Ubuntu for a long time but kept running into situations where it would break, such as boot loops. Eventually I settled on Garuda because it ships with newer software and Nvidia drivers, which is helpful because I use my PC for gaming. I have stuck around because it’s garuda-update command automatically makes a backup of your system out of the box, and you can select to boot into a backup in grub then restore it really easily. There have been a couple times where something has broken on an update, but when that happens I can immediately restore the backup, and I don’t even need to remember to run a backup manually. I do feel that the default theme is a bit gaudy so I swapped it to a default KDE, but other than that I’ve had pretty much only good experiences with Garuda.

Are you explicitly looking for competitive multiplayer games? Single player shooters like Prey, or the BioShock games, might be able to fulfill what you’re looking for. I like Helldivers 2, as well. It’s not slow per se, but your fighting AI and not people so insane reflexes are far from important. It’s coop but very worth your time.