You linked to black 2.0. It may very well be the blackest black, but it is decidedly not Vantablack. I think this is worth distinguishing, because interestingly, I don't think just anyone can get their hands on Vantablack because someone obtained exclusive rights to it. :) https://en.wikipedia.org/wiki/Stuart_Semple#Conflict_with_An...

Many years ago I bought some of the black 2.0 on a lark, and honestly both brush and air brushing seemed to produce very meh results. Like nothing that to me indicated any significant difference in matteness vs many other paints I’ve used. Now I realize I didn’t try applying it to actual glass or anything, but even on polished resin it didn’t stand out as meaningfully different.

Vanta black is a whole different beast, but it also isn’t paint so I feel it’s cheating that particular race :)