Stardew is the opposite of relaxing for me. It’s a never ending to-do list and sense that you don’t have enough time. It’s “Chores: The video game”
As opposed to something like Animal Crossing with very few limitations where I can really enjoy myself.
Then you also know that you don't need to do things as fast as possible, you can always let things chill. Sometimes you can use it to practice not caring about everything - like "this run, I don't fish until year 2 - just farming for me."