Perhaps I'm ranting but this IS an Apple based list. In MacOS classic from M1, I can mount a folder that exists on M2 and another folder that exists on M3.
Dragging a file, as an icon on a CRT connected to M1, from M2 to M3 goes directly with no problem. I think it's because high level AppleEvents are set up to handle copies and moves like that. The 128 kb/sec LocalTalk network it was designed for may have had an effect. But I can't do that if M1 is running Tiger. Apple deliberately turned it off for my OS 7 machines.. -- Applescript syntax is like English spelling: Roughly, though not thoroughly, thought through.