I find navigation-based contexutal key hints (vaulting, breaching, door-opening, etc.) to be unnecessary as the game is intuitive enough that you get great feedback when you see it working. Turning it off really adds to the immersion. However, world/item interaction (resupplying, planting, magazine from dead body pickup, etc.) doesn't operate in the same manner and I would find it useful for the key hints to be present to know progress or even when it is actionable.
My proposition: Create two separate options for Navigational and Interaction under 'Show Contextual Key Hints.' I'm sure one could find better names, but I see no down sides in adding this feature. I am optimistic about your consideration.