About bindings, it would have been better to redirect to:

LESS=+/"DEFAULT KEY BINDINGS" man readline

assuming it exists on mac.

About suspend, what's the benefit of suspending vim using C-z? Shouldn't you use a terminal multiplexer instead, or even terminal tabs if you don't want to learn how to use tmux or screen (which I find weird if you already spent time to learn how to use vim but alright)?

I only ever suspend a program when I want it to stop, for instance because it slows other programs and I realize I would rather resume it when I'm not in front of my computer. Even in that case, I often just renice the program instead. Stopping a program just because you want to run some bash commands looks like an anti-pattern to me, but maybe there are better motives I'm not aware of.