It occurs to me that my post was unduly dismissive. I totally believe that most modern UIs are horribly broken, and I completely sympathise with the 'burn it all down!' approach. But forcing everybody to change their workflow because reasons is, I believe, not it. (Though I'm willing to be persuaded otherwise.)
I loathe hot corners; every day or so I accidentally lock the screen on my work macbook because when I fling the mouse pointer out of the way of what I'm looking at it hits a corner.
I also loathe full-screen menus. Screens are big, and having the entire contents of my screen be replaced with an information-heavy overlay is a non-trivial perceptual context switch which instantly causes me to lose my place in what I was doing. You underestimate how cheap a right-click menu selection can be; press, drag a small distance down, let go. And if the app's designed properly you can right click anywhere.
(Which, to be honest, most apps aren't. I grew up on RISC OS, which was driven entirely by context menus, and did this stuff right --- each app was a single context target. Modern apps have different contexts for every tiny UI element. Web browsers are particularly bad; I can't count the number of time I've done 'Open in new tab' rather than 'Back' because the mouse just happened to be on a link rather than a text area.)
My point is: one size doesn't fit all.
(In case you don’t know how: go to System Preferences → Desktop & Screen Saver → Screen Saver → Hot Corners…)