I have a few games for this.
I’ll load up Dreamlight Valley and gather up resources.
I’ll load of Java Minecraft and just branch mine on Peaceful to relax.
Dave the Diver is a good one.
Factorio is a good one to relax and grind when you don’t have the difficulty too hard.
If you don’t plan on using the computer portion of it, then it’s basically just a glorified Nintendo Switch with the Steam store being where you buy your games. But plenty of YouTube videos make it easy to do other things with it.