Shanks vs Greenbull is a No-diff fight, Shanks can basically kill him without even drawing his sword

With the confirmation that Conqueror's Haki can be weaponized as Gaban showed it in Chapter 1190 then I think this shows that Shanks wiuld have no-diffed Greenbull in Chapter 1055 since his Haki was enough to overwhelm him so if he wanted to damage him he would have destroyed him

And to me destroying someone without drawing your weapon and basically taking no damage counts as a no-diff fight as you arent even fighting.

Like before I already​ thought the fight was a Low-Diff but with the confirmation that Haki can damage someone then Shank's Haki would have completely destroyed GB in no time