Well, you said at the same time that a "truly desktop OS" is 'also dead' and complained about the "new look and functionality". It's true, you didn't literally say 'macOS is dead', but it's not that much of a stretch for someone to read between the lines and suppose that's what you meant in a deeper sense, is it?
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It occurred to me that even if the platform does grow generally more restricted in terms of software access, as I suspected it will, the Macintosh platform 'can't' be totally closed off in the same sense that the iDevices are, because the ecosystem assumes that app developers are using Macs, and the ability to develop software implies the ability to test it. I have a hard time believing that Apple would be so foolish as to sabotage the process of becoming a developer for the sake of restricting software access, so this means you should always be able to use open-source 'in-development' software, albeit maybe with more hoops to jump through to get there.
As far as Linux goes, Mac users who are tempted to 'defect', as I have done, should be aware of some things. Even with their modern GUIs and 'app stores', the Linux world, at its core, caters to the type of people who take the command line for granted. You'll end up using it whenever anything goes wrong or is even merely unexpected (which happens frequently). The cumulative effect adds up to something very different from the Mac, or even Windows, experience.
If you're a longterm Mac user and think you're unhappy with Apple's 'closed system', Linux is the opposite extreme, and demonstrates some of the reasons why Apple does it that way in the first place. I use it just about every day, so I'm not saying that it's bad or worthless, but it might be for you. "If you want a computer that's easy to use, there's still only one way to go." (At the least, I'd strongly recommend that anyone who thinks they want to use Linux do it on a virtual machine or a second boot partition first.)
