I'm having some issues while running some specific games in a multi monitor setup in KDE. I use KDE's Window Rules to target specific games for specific monitors, however a few games, mostly Unity games, don't have any window title, which means the Window Rules will apply for ALL games with no title.
Say, I set Kerbal Space Program to start on monitor 1, and then launch The Talos Principle which I want on monitor 2, but since none of those games have a window title they all start on monitor 1.
Does anyone have any solution to this? As it is, I have to regularly create and delete a Window Rule entry for title-less windows.
Games that do have a window title work as supposed, I create a rule that is specific to that game and it doesn't interfere with others.

Maybe someone knows of another way to target games for specific monitors (assuming the game itself doesn't gave that option, naturally. Only a few do).