Show all key bindings on key press?

Hey,

I was wondering if there is a feature/plugin that would, on a certain key combo, show shortcuts for all available buttons/interactables on screen.

To illustrate, I'm looking for something similar to what ms word does when 'alt' is pressed ( https://prnt.sc/p0sa89 , https://prnt.sc/p0sa12 ), but extended to encompass everything on screen that has a binding.

Any hints would be appreciated.

Best regards,
Ivan