I have a large screen instead of multiple screens, i always preferred that and docking windows in either 2X split or 4X (or rarely 2X and then 2X again on another side) but sometimes i want to run a game or something alike that only runs in fullscreen, i'm on a 4K monitor and i'd want to be able to say "switch to splitting my desktop in a way that it is recognized as 4X monitors" so that i can send what i want to the monitor of my choice, or better yet anything flexible that lets me create a virtual monitor and place it wherever i want. Does such a thing exist? Searching with basic keywords yields results about splitting my windows or about creating virtual monitors that you can switch to / are out of view but i want multiple of them visible at once on the real monitor / even better if they're movable (monitor in borderless window).
Question is for windows 11 latest.