> No, that's window management. Decoration is just drawing borders around the window rectangle. in Wayland you still have a window manager, it's the compositor. The compositor does move windows around, hide or display them. It can do other things like distort them or map them to the sides of a spinning cube.
I don't understand it. How does the compositor know that it has to move or minimize a window if the client is responsible for the window drag bar and the minimization widgets ?