This to me really ignores all the other influences capitalist competition will have on this hypothetical world. AI will be better at us than art. AI generated art will sell better than human art. There will be little incentive to do anything other than consume. I doubt in this hypothetical world it would be made at all accessible to pursue things which might remind humans of the distinct human abilities and feelings in a world where our time will rather than freed up, be dedicated to consuming rather than producing. The ruling class will never let us have free time unless we are producing for them in some way.

Post-Scarcity Capitalism is a dystopia. There’s no way around it.