I have a 32:9 screen and I want to play CS2 in middle, 16:9 way. I couldn't do it natively and tried Gamescope.

While Gamescope works as I would like, the mouse is doesn't work properly. As you can see from the video, game is centered but mouse is aligned to right of the screen. The params I'm using are;

gamemoderun gamescope -f -w 2560 -h 1440 -r 240 --force-grab-cursor -S integer -- %command% -fullscreen

Any recommendations?