I think this particular anxiety was explored rather well in the anonymous short story 'The End of Creative Scarcity':
https://www.fictionpress.com/s/3353977/1/The-End-of-Creative...
Some existential objections occur; how sure are we that there isn't an infinite regress of ever deeper games to explore? Can we claim that every game has an enjoyment-nullifying hack yet to discover with no exceptions? If pampered pet animals don't appear to experience the boredom we anticipate is coming for us, is the expectation completely wrong?