If you are using KDE then there is a global Window rules setting and Heroic actually obey those rules, so you can force to launch a game always on X display, always minimized etc.
https://docs.kde.org/stable5/en/kwin/kcontrol/windowspecific... (not sure that's the most up to date manual)
If you are using KDE then there is a global Window rules setting and Heroic actually obey those rules, so you can force to launch a game always on X display, always minimized etc.
https://docs.kde.org/stable5/en/kwin/kcontrol/windowspecific... (not sure that's the most up to date manual)