I have a three monitor setup. I'm playing War Thunder through Steam. I'm running Manjaro Gnome with an NVidia 2080 Super. If I try to use something on another monitor, like reply to a Discord message, the game loses focus and minimizes.
I've tried the suggestion I've seen online of using. SDL_VIDEO_MINIMIZE_ON_FOCUS_LOSS=0 %command%
I've tried putting that in the game's launch options in steam, tried setting the environment variable. It doesn't work for me. The game only has a windowed option, but that is an issue because you can't do border-less windowed. Also performance drops dramatically when you do.
Any tricks to keep a game full screen and not lose focus when using another window?