works for me both on my archlinux machine and my steamdeck with steam and non-steam games. I’ve even played NFSU2 with it =] . I don’t think it required any more configuration than just pairing for me, no special drivers or tools. Maybe it needs a firmware update (I don’t know if that’s a thing, just a thought)?

Ah, I should have been more clear. The CRITERIA section of the sway documentation states that class matches support regex, so instead of using a * as you did in your example you’d use a regex any .*. So I think (untested of course) that for_window [class="steam_app_.*"] allow_tearing yes should work.

The comment in the code for allow_tearing notes that it must be enabled on the output as well. Here is the relevant output documentation. There are several other notes/recommendations there as well you should probably pay attention to.

Are your games all wine/proton games? For me in sway they all have the same class followed by some uid thing:

] > swaymsg -t get_tree
[...]
  #92: output "DP-5"
    #70: workspace "21"
      #126: con "Automobilista 2" (xwayland, pid: 171976, instance: "steam_app_1066890", class: "steam_app_1066890", X11 window: 0x5400001)

Or gamescope:

] > swaymsg -t get_tree
[...]
  #92: output "DP-5"
    #70: workspace "21"
      #124: con "Assetto Corsa" (xdg_shell, pid: 170694, app_id: "gamescope")

EDIT: Also allow_tearing was added to master 3 weeks ago, so this is definitely not in the current release. FYI to anyone who might try it.

Or add EA anti-cheat 6 months after release like they did for EA WRC.

TIL the Cammus C5 works as a generic HID Force Feedback device in Linux. That really makes up for the weird marketing.

What display manager do you use? There’s a very very short list of ones that support wayland sessions: https://wiki.archlinux.org/title/Wayland#Display_managers . And some of those don’t display themselves using wayland, they can only launch sessions.

Probably? Honestly I just read the sections of the docs that were relevant to what I needed and clicked buttons until things worked. Tutorials are dangerous because the moment they are published they are out of date, unless the author goes back and updates it regularly which is pretty rare, or impossible if it’s something like a youtube video.

Anyway it’s a GUI application with lots of tool tips and all that, it’s not difficult to use.

Bottles (https://usebottles.com/) is what you’re looking for, sandboxing is one of it’s primary features. It can use lutris prefixes too if you need them.

EDIT: It’s only sandboxed if you use the flatpak, just FYI.

Apologies if this is a dumb suggestion, I only briefly tested it, but couldn’t you simply run your display at a lower resolution? The deck would perform better and the interface/game scale would match each display correctly.

EDIT: Ah, maybe you mean the desktop, not the steam deck game interface, in which case things would look pretty bad at a lower resolution.