I legitimately have no idea what this means
It Is something that was said again and again.
AdvCoC usage Is usually shown with thicker lightnings that "go back" in the direction of the user.
Usually the scene Is like this: user > (lightnings have this form) target. Basically this ">" sign.
You can clearly see this against Kaido, for example.
I don't even have an agenda against Kizaru though. I think Kizaru >= Luffy; both were not going all out and were doing some disgraceful mickey mouse stuff.
But Oda's portrayal is that the fight would be close, but Kizaru is a bit stronger, with the double KO while Kizaru got back up first.
I just don't buy that we can claim what type of haki is being used, from visuals alone.
100% confirmation at this point can only come from characters outright saying it.
Other than that, for me, narrative/logical argument makes more sense than arguments based on visuals.
For example, I think it's logical to assume Zoro's final attack on Lucci was advanced conqueror's - because Lucci was shown able to hold his own against even Zoro overusing advanced armament (smoke), it doesn't make sense that a single attack from advanced armament Zoro can almost one shot Lucci.
Similarly, I think narratively we can argue that WSG was advanced conqueror's.
It's Luffy's last attack before he's out of gas, and in desperation. It makes sense he used his highest level haki with that attack as well. As for other attacks? IDK.
100% now Is only when Oda confirms It since he Is totally unrealiable as said, but alas we can be more or less sure even in other situations.
For example, you talk about narrative for Zoro vs Lucci, and you are right. Now: we have Kizaru saying explicitly that he undestands why Luffy has beaten Kaido, a phrase that would have
absolutely no sense if It was for AdvCoA only Luffy. I think we can agree on that: that was Oda saying Luffy was giving It all, literally.
Still, people came out with the weirdest takes to basically erase this simple statement.
You need to consult an ophthalmologist
I am sorry you took that this bad.