Question for you in particular since you are an author who I read and enjoy (and pay): Would you continue writing novels if you got UBI of equivalent size and weren't allowed to charge for your books?
Not just for individuals either — imagine what would come out of the collectives of artists who would pool that money.
And in such a world, where basic needs for all citizens are handled already, I can see a version wherein art and entertainment would be even more greatly valued — especially since UBI means access doesn’t need to be gated nearly as harshly.