I think xdg-open defers to gnome-open/kde-open/... depending on what DE is currently running. Not sure about that. Anyway, xdg-open should be installed anywhere

I think xdg-open defers to gnome-open/kde-open/... depending on what DE is currently running. Not sure about that. Anyway, xdg-open should be installed anywhere where any kind of DE is installed.