Not an expert, but here are some good ones:

Earthbound (SNES) - Kids-on-bikes fight aliens and meet cryptids in a quest to stop a cosmic horror in a JRPG set in suburban America. It’s weird, wonderful, musical, and sometimes startlingly heartfelt. Not too grindy as JRPGs go, but keep the 2x fast,forward button handy anyway.

Chrono Trigger (SNES) - Another must-play. It’s a time-travelling fantasy JRPG with one of the best OSTs ever made. While playing it, I had an existential crisis realizing I’d never run a D&D campaign this cool.

Metroid Fusion (GBA) - A metroidvania (duh) set in an infested space station, where an injured Samus races to arm herself against an unknown enemy. It manages to feel desperate, claustrophobic, and fast-paced, which – hot take – I feel is rare for the genre.

The Legend of Zelda: The Minish Cap (GBA) - A self-indulgent pick for me, as I imprinted on this short-but-sweet game at an early age. It’s the last isometric Zelda and a swansong to the genre. The central gimmick, shrinking Link to the size of a mouse, gives the pixel artists the rare chance to show environments in lush, up-close detail that makes the world spring to life. Also: Ezlo sounds like Danny Devito. That is all.

Running Steam games on Mint, I don’t think I’ve ever run into a game that flat-out didn’t run. Usually they work out of the box. The most I’ve ever had to do was select “Force the use of a specific compatibility tool” and try out a different version of Proton from the dropdown list.

It’s been remarkably unproblematic.