[rixed]

Please do not see any malice in this naive question, but why is that an obsolete model? Back in the days I had very different displays that I could use to display various windows of a flight simulator (some dedicated to some instruments, the big one for the front view, for instance) and it was quite nice. It sounds like that would not be easy to replicate with a single shared frame buffer, but maybe I'm wrong (I've been using nothing but a small laptop screen for decades)

[chadgpt3]

It's much easier to place a window at a specific position on a large frame buffer than to drag a window between screens when they are separate display servers.