> If you set a custom titlebar, GTK will do its best to convince the window manager not to put its own titlebar on the window. it kind of looks like GTK does the same thing, it just gives you a more convenient API? apparently on X11, `root.wm_attributes("-type", "splash")` disables the decorative framing ([stackoverflow post](), [tk reference]()), but im not sure if you still need to implement window dragging yourself
but gtk also provides us with a headerbar widget