Also, in X terminology, the server owns/controls the display, the client is the app that wants to draw a window on the server’s display. The classic architectur

Also, in X terminology, the server owns/controls the display, the client is the app that wants to draw a window on the server’s display. The classic architecture would be client telling server what to draw, but these days what really happens is that clients draw locally into a buffer and then tell X server to draw the contents of the buffer.