I've been using MacBook at work for years and I still perceive UX as fundamentally broken - I'm incapable of doing basic operations in Finder or changing basic system settings, and random shit I didn't want to press pops up when I'm doing other things. I feel like my grandpa trying to adjust to new phone. I will never ever recommend anything Apple to anyone.

Having said the above, I think that KDE is almost there to have a functional UX that can replace Windows. Not there yet because of random bugs, but almost almost.

Once gamers actually switch to Linux, which is a viable thing, they'll teach their family members. Home users will switch to Linux, and Windows will become an exclusively enterprise and government thing. But once average person is comfortable with Linux because they have it at home, those institutions will start switching to Linux too. And that's how Microsoft will fall. Just like most other corporations - through their own greed.