There’s a funny amount of beef around using it in art, you have Anish Kapoor who bought exclusive rights to use Vantablack artistically and man of the people Stuart Semple offering his versions Black 1.0, 2.0, 3.0, 4.0 getting ever blacker.
I saw a few of these black Anish Kapoor sculptures. The experience was worth the cost. The brain has a hard time processing it.
"The paint is sold through Semple’s brand, Culture Hustle, and remains explicitly unavailable to Anish Kapoor or his affiliates"
Which is all a dumb marketing stunt because it was never a pigment artists could paint with anyway.