Or how do you suppose art gets created for humanity as a whole to enjoy?
Who decides which artists get subsidized? How would larger projects work? Seeing how often open source volunteer projects implode due to various community drama, this sort of system would basically preclude any sort of big production.
The easy answer is to just pay literally everyone. This is called a “universal basic income”, and has been repeatedly demonstrated to be a good idea for many reasons besides decoupling creative expression from the need to put food on the table.