most iOSLeanBack: probably not interested in macOS ( use iPad)
most iOSLeanForward: comprehends macOS (maybe uses a Mac) (iPadPro)
macOSSleevesUp uses: iPads and Air
macOSToolbeltON uses: iPad, iPadPro,MacbookPro, iMac
Cold Fact: macOSToolbelt is the most complex with the least number of customers.
BUT Apple should do themselves proud and iterate the NeXT/OSX legacy again for the 21st century…. These toolbelt folks aren’t going away and big data, AR, and AI are expensive processes…