Linux is not a “major desktop operating system”. Let’s be intellectually honest here, particularly because you’re using the number “3” to bolster your argument that Apple is being negligent or unfair or whatever. Be annoyed at Apple for not ‘supporting Android’ or whatever all you want, but let’s not pretend that Apple isn’t paying a very justifiable amount of attention to desktop Linux. What next, iCloud.com doesn’t load properly in Lynx?