• absolute recommendations:
  • Control - great story and gameplay
  • Outer Wilds - fantastic story and concept
  • Journey - very nice experience, 2hours long
  • Rez infinite - recommended, great electronic music
• recommendation:
  • Horizon Zero Dawn - action, great story and graphics
  • Wipeout - classic race game
• candidates to buy in the future:
  • Frostpunk (but I would rather play it with a mouse.. yet there is no Linux version)
  • Control: the foundation
  • Overcooked (puzzle, small)
  • Uncharted (Indiana jones style action)
  • Obduction (puzzle), hob (legend of zelda style)
  • Final Fantasy VII Remake

The hardware should be capable of running Linux, but as of now there are no known way to run Linux on PS4 pro. :(