But that is completely different. If you have a full screen window/split in full screen, it breaks multi monitor setups. You can not drag a third window over yo

But that is completely different. If you have a full screen window/split in full screen, it breaks multi monitor setups. You can not drag a third window over your full screened monitor anymore, because it's in exclusive full screen. Triple monitor setups get broken in their usability if you have something full screened in your center screen.