What about a Turn-based RPG like Yakuza Like A Dragon? It’s open world, plays great on the deck, has amazing world building/ambience to it and it’s incredibly replayable. You can frequently find it on sale (or get a cheap key from G2A) and its sequel is coming out soon.
For me, it feels like an old school RPG with modern quality of life improvements and plenty of character.
Gran Turismo 2 - I have no idea why to this day, I play it atleast weekly. To me, everything about this game is timeless from the Soundtrack, selection of cards to the graphical style (it has to be played on a CRT mind you OR an emulator with some mods to fix textures and clipping properly.).