Paint Maxit facade in white?

Hello, the final layer of the exterior plaster has just been applied here! It is from the manufacturer Maxit in white! This raises the question for me of how often I need to paint it! The plastering company says once is enough if it is white, and a painter friend says with new plaster always twice! What do you think? Thank you very much for your opinion!

We have the same case. I don't know the brand now. But it was said that if the color is already mixed into the plaster, we only need to paint once. Otherwise, it would be pointless. Just be careful to get the same shade.