Are "Ross’s GUI Truths" factually accurate?

Ross Scott of Accursed Farms released a very extensive (albeit outsider POV) analysis of the GUIs of modern operating systems, titled The GUI should be better. A lot better.

I saw it shared in multiple communities on Reddit, and my impression was that it's somewhat controversial on its own. Now, the video itself is very long, being over an hour, but Ross eventually had a list of "GUI truths", which are things I assume are UX considerations:

These are easier of verify and dispute, so I'd like to ask about the "scientific" accuracy of those. Given our current knowledge of user experience, ergonomy, and others, are these statements valid?

Of course, some of these are rather vague; in this case, those can be skipped for the sake of this questions.