
I feel like once Zoro fully masters Conqueror’s Haki, he’ll unleash it in a way that causes earthquakes giving his use of CoC a unique one.
Oda may have hinted at this back in Chapter 997, when people mistakenly thought Zoro had caused the earthquake using Conqueror’s Haki, even though it was actually Kaido devil fruit.
The fact that they assumed it was Zoro suggests Oda could be foreshadowing something like Zoro eventually using CoC in such a dominant way that it literally shakes the ground possibly the whole island