Xbox Game Pass for PC is an incredible value, even with the caveat of having to run windows (which sucks so bad). That’s always my top rec for PC gamers.
Elden Ring is still my number one game. It’s awesome and will run great on your new PC as well as your deck. It’s also got a lot in common with your listed games.
Grounded is a great game as well! It’s a reasonably difficult survival crafting game (like Subnautica). Same goes for Return to Moria.
The experience of playing modern games on a modern AAA “high end” PC is obviously going to be better if you care about things like ray-tracing and high framerates or resolution. You can’t really dispute that.
But it would be stupid to say you’re wrong if you just want to play that same game on your system if it actually runs. If the game is playable and you’re having fun, you’re doing it correctly.
I only upgrade when I start to see multiple games a year that just straight up don’t work on my computer.