If you want to be pissed off, go find out about Xresources & how you used to be able to override and adjust every last graphical element of the user interface to suit your own needs/preferences
Go look into how you used to be able to have multiple X desktops running on the same machine at the same time and simply access them through (network) sockets without stupid interposer protocols/software
You used to able to simply pop up a window on another machine by export DISPLAY=$IP:0