Not every game needs a story or campaign you can finish to be enjoyable. Playing random skirmishes in Age of Empires 2 or Supreme Commander can be loads of fun. Civilization 5 has scenarios that I suspect most players don’t even know exist (also, you can play Unciv for free). You can pick up and put down much like you’d do to boardgames.

Then there’s “infinite” games like Cities Skyline, RimWorld, Dwarf Fortress, Satisfactory. It’s ok to want once and done games, but games that you want to replay when they lack any mtx or dark patterns speaks something about your enjoyment