Personally, i just need a game that lets me do something pretty. Satisfactory was mentioned, or City Skylines. Or something that is highly nostalgic and familiar, like Skyrim, Halo or Minecraft. I don’t intrinsically need to think in these cases, which is my goal. I’m a programmer, so anything that lets me shut my brain off and just exist is great. Sometimes BloonsTD is also a great game for this, but it’s situational.
Counter intuitively, most “casual” games like Stardew don’t really fit this vibe for me because of the daily time limit. I need to pick and choose what tasks to do in a day, and I always fall into a min-max schedule, which requires effort. Much as I love them, I also avoid story driven games like Baldur’s Gate when I need to unwind, because I really need to pay attention to progress, and there kinda isn’t any mindless grinding. Multiplayer games with randos is also strictly out. No League, COD, Battlefield, Fortnite etc… Just in general. Don’t like 'em, never did, hate that they are so prolific. They’re just stressful.