"It [Amiga] uses a workbench metaphor (in place of the more common desktop metaphor) for representing file system organisation." Is "workbench" truly a differe

"It [Amiga] uses a workbench metaphor (in place of the more common desktop metaphor) for representing file system organisation." Is "workbench" truly a different metaphor from "desktop," or is it just a different word used to avoid legal hassles?