I repeat: the menu bar is a dying abstraction, preserved in a consistent form only on the Macintosh (even iOS has no equivalent), because it's presence is unavoidable. Users of modern apps don't see it used consistently, so it's absolutely not surprising that Apple's designers aren't doing it either.

Applies only to an increasingly obscure input device. No one talks about Fitts's Law on phones, because it's fundamentally wrong. The "size" of a control assumes you have a mouse or joystick or something trying to find it. Fingers don't do that, no one worries about moving to a control.

> Discoverability

Equally true of a hamburger menu.

> I use menus all the time

I do too! Because we're dinosaurs.

> You say 'no one uses menus' Not true.

It was hyperbole that I genuinely thought was clear from the text. You know exactly what I meant. Menus are secondary devices at this point only seriously used on one platform, so it's 100% unsurprising that design paradigms for using them are changing ("decaying", I suspect you and the other dinosaurs would say) to reflect patterns used elsewhere in the industry.