Earlier quoted context omitted.
Huh? Of all the wonky shit about my Mac, the flawless keyboard navigation is really none of that
I had been using Windows my entire life and using a Mac in 2009? was awful. How do I get to the menu bar? Ctrl-F2. They keep changing the behaviour of the menu so that cursor keys don't wrap at the bottom of a menu so you have to know which direction you want to go to get to a menu item - make your choice! Up or down! How do I get to the dock so that I can open the Applications menu? Ctrl-F3. left left left left left…
MacOS is a different operating system with different paradigms; instead of a start menu, you'd use Spotlight search for the same effect, which can be invoked with CMD+Space.