One important difference was that AmigaOS bumped the priority of threads that dealt with user input - the user always had priority over other tasks. Somehow th

One important difference was that AmigaOS bumped the priority of threads that dealt with user input - the user always had priority over other tasks. Somehow this simple trick seems to have been forgotten or is ignored in modern OS development - or if modern operating systems still do this, their process schedulers seem to be pretty terrible at handling priorities.