The mining itself is pretty simplistic, you just run into the minerals and auto-mine. It still adds a bit more variety to the game, since it's not just collecting XP to level. You also get some secondary objectives, like collect X flowers, mushrooms or Morkite.

For me the game works on the Deck, but the launch videos are broken. I just get some kind of test pattern and after 5 seconds it loads me into the main menu.