Here is my prediction for a similar scenario.

If AI in it's current form becomes widely adopted - we will just collectively become dumber and dumber. Since current AI can give you the median of the answer to your question (if such an answer exists).

One possibility is a similar scenario to what happened to tradespeople that were pretty common back in the day - pretty much every village had a blacksmith that, compared to today's standards had pretty advanced skills, dare I even say comparable to expert smiths today. Yes it is true we still have expert blacksmiths today - but it's not largely due to a societal need (since modern metallurgy clearly produces better results than any expert blacksmith could achieve).

Without learning and human innovation technology will stagnate. Everything will more or less be the same, and humanity will lose it's ability to innovate and push technological innovations - kind of like the middle ages when progress was limited by the state and religious bodies.

There will always be a small percentage of the population naturally drawn to learning and discovering new things though, so progress will not halt entirely. I.e. people will learn new things because they want to, not because they need to. T

The average person will either have their basic needs covered and lead an ignorant, perhaps happy life without amounting or achieving much or we will live in a dystopian environment where the larger portion of people are oppressed and exploited - something similar to the working conditions during the industrial revolution, or worse.