That's true I've heard some people say they basically never use the mouse. I wonder how feasible this is with MacOS in its current incarnation.
also there's a lot of annoying little things - if i'm typing in one space, and switch spaces, my typing cursor is still off the screen until i bring an app in the current space in focus
you can still do it, but there's a lot more context-specific stuff to be a keyboard poweruser on MacOS vs windows/linux