I got Game Pass and a Series X recently and these are the games I've enjoyed so far
Astroneer - planet exploration / building game
Snowrunner - truck driving in extreme environments
Katamari Damacy Reroll - trippy Japanese classic
Forza Horizon 4 - I used this to practice driving on the left before my travel
Tetris Effect Connected - intense and trippy version of the original, amazing on OLED + Atmos
I don't really like shooters, I'm a casual gamer