Linux has had those things for longer that Mac has with the exception of the global menu. Docks have been around before Finder adopted a dock. Beagle predates

Linux has had those things for longer that Mac has with the exception of the global menu. Docks have been around before Finder adopted a dock. Beagle predates Spotlight. Workspaces have existed for as long as GUIs have for Linux and Apt has been around for over a decade, with the Ubuntu Software Center in its present form predating the Mac App Store.