I still love my Index, but I’m 100% buying the Frame when it comes out. I haven’t tried the Index on Desktop SteamOS yet. I should do that. The groundwork for Linux and VR has likely already been laid out.

It didn’t seem to have an effect, unfortunately.

I’ll give that a shot tonight and let you know

It does not seem to work for me. After inputting

wmctrl -a helldivers -b toggle,fullscreen

I just get a quick black flicker and it goes back to minimized. I also tried changing the win argument to :SELECT: from the documentation you linked, but it still doesn’t pull up the window and keep it there.

The command does work for other windows, for clarification.

I just gave that a shot. When I come back and re-fullscreen, the game minimizes and goes back to the problem state.