The game is set to run full screen ( as windowed fullscreen caps the framerate to 60, while the screen supports 144 ).

In case your game also doesn’t launch on the main screen you can try setting the monitor to a different position on the virtual canvas:

https://github.com/ValveSoftware/csgo-osx-linux/issues/3282#issuecomment-1969271416

something you can try https://github.com/ValveSoftware/csgo-osx-linux/issues/3282#issuecomment-1969271416

For me putting the gaming monitor higher on the virtual canvas made them launch on that monitor.