Is the on-screen text unreadable because the screen is too small, or is it a different issue? Of course not all games will be suitable for such a small screen. On my big-screen Linux PC, Cyberpunk works absolutely flawlessly. Well, not entirely flawlessly; I think I've had three times that it crashed, and when it does, it hangs the compositor until I kill the Cyberpunk process. Could be an X11/Wayland issue.