What I've found with off and on again use of AI, is that it really seems like a super thin layer in doing a job of coalescing search results I would have found naturally into a single answer.
However, and issue I've run into in trying to use AI for coding, is pretty much every time the hallucination factor means often the code it suggests will not work, especially when it suggests bringing in a whole framework as the bulk of thew solution - when that framework does not even exist!
For shopping I would wonder if it actually made up products, or the existence of products even on specific websites. I think often a simple glance at the first page of a Google or Bing search might yield just as quick and more accurate results...
On a side note I mention Bing, because for me I the past month I have had Bing actually return a more obscure search result that was useful to me, that I could not find via Google! An interesting sign that maybe Google search results are decaying in their traditionally strongest arena, coding research.