> E.g., in Windows apps, menu items are keyboard-addressable by default. This is brilliant for accessibility, and for accustomed power users. MacOS has no _by default_ equivalent.

Cmd-Shift-? (really, Cmd-?)

You can begin using arrow keys from there, or start typing to search the menu items of the foreground app

You can also assign arbitrary hotkeys to any application's menu items in the OS system preferences