(EDIT: I recommended these games upthread before reading the kind of games you might like. Based on this new info I’m recommending them again.)
You might enjoy Subnautica. Possibly a lot.
There is a chance a work-like feel might seep in. Then again, you can disable food and water to remove some of that and still get a full experience. (But maybe not needed. The food and water system isn’t onerous.)
By contrast, I don’t think I would recommend Oxygen Not Included (which I think is very good) because one of the complaints of that base-building game is that it starts to feel like work. I concede that that complaint isn’t unfounded.
You might like Control. It’s a third person shooter, as opposed to FPS, but pretty forgiving and you definitely feel very powerful. It’s short enough that there’s a good chance you would finish the story before losing interest.
I have GTA V installed, which Google says takes 72 GB but my folder says 101 GB. So now I’m doubting that Cyberpunk 2077 is really only 70 GB like Google claims.
While I was checking I also checked Subnautica (7.6 GB) and Control (49.5 GB), but I do not have Control Ultimate Edition, just the base game. The ultimate edition bundle is the thing you would normally buy, and it will be bigger.