This is insane Shanks upscale too naturally as I expected. Only Shanks only showed CoC to damage the environment just so casually? When he damaged Whitebeards ship before? He said he couldn't control his haki IIRC then and in the games, Shanks can walk and just knock people out as he walks as he did on Whitebeard's ship but also extend the range of his sword with haki and it makes it feel like "time has slowed down" too when he uses CoC in the games, so that would fit too.
Me and a former friend had a theory that the ultimate CoC mastery would give domininance over matter and space itself, to not just conquer minds and thus other living things but the forces, space and matter themselves. If that makes sense?
I actually had that concept in mind too, or something like it. Effectively use Conq to dominate elements, people etc and force them to obey you.
For e.g. a swordsman could master Conk to passively will the air he cuts through to accelerate his strike's speed or surround his blade in a sheathe of slicing winds.
Or Garp's GI, he uses Conk to amp the impacts of his punches by causing the air to create shockwaves like a pseudo-Gura.
This could work really well with Logias who could use Conk with their element to buff it and "usurp" other elements properties, like a Magu user with Conk having the power to evolve his magma to be more explosive or flow like water.