I think I've seen discussions about this before, and obviously the USSR produced art because we still see statues of Lenin today. But how does this translate in modern times with the instance of obscure art or other modern art? Often the purpose of that art is to explicitly go against societal norms for aesthetics.
It's not labor that Marx cares about but socially necessary labor. So the mudpies argument falls apart by simply noting that making mudpies isn't socially necessary labor because nobody fucking needs or wants mudpies lol
I'm going to type up a huge reply, but I have to punch back in for my government-mandated 8 hours of mudpie baking