I’ve been getting really into Vampire: The Masquerade - Bloodlines and Redemption, old school Runescape, Ragnarok Online, Arcanum, Diablo II, and other old classics lately, and I’m looking for more 90s/early 00s PC games that will run on my new Thinkpad E15 G4 running Arch Linux.
Check out all the old “immersive sims” like Deus Ex, Arx Fatalis, System Shock 2, and Thief.
If you’re cool with emulators, PSX has a metric ton of JRPGs that will absolutely devour your life.
This isn’t really a good recommendation for OP, since it has fairly hefty modern graphics card requirements, but I’d like to give a shout out to the System Shock remake. It finally launched two weeks ago (I kickstarted way back in 2016 lol) and I’ve been enjoying it. It’s mostly a graphical and controls update that doesn’t otherwise stray far from the original game’s design. Largely the same maze-like space station layout, old-school tile-based inventory management, etc.