Rimworld? Stellaris, or any other Paradox 4X? Terraria? Like any Source game you care to mention? Civ? Stardew? And those are just ones with Linux native versions, not even verified compatible.
Proton has changed the linux gaming scene in the past five years. I could write any unreal engine title which anti-cheat aside will run. Linked is ProtonDB - maybe a favoured game of yours is already on there.
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It isn't 2011 anymore.