I'll be a little contrarian here. I've actually purchased things from Instagram ads. Because they were highly targeted and actually something I wanted once I learned it existed. It was a solution to a problem I had but never researched for a solution.
I'm guessing ChatGPT will be able to do the same for me, especially since it probably knows me better than Instagram at this point, just given all the things I ask it.
If they do it right, it will be helpful. The big question is will they do it right.