Could use some refinement though. Only a two window left/right split is able to resize both windows when dragging one. You can't have say one window on the left, and two on the right and expect all of them to be resized to maintain that layout.
You can, at least with Windows 10, have the screen split into 4. But once you go beyond a left/right split, the other windows will not resize to maintain their areas if you resize one of them.