I think you're right that it's going to get enshittified (in fact I tried to say a similar thing toward the end of my comment). I'll stand by this though, LLM Chat, as it exists now, is (imo) objectively better than Google Search, as it is now. Google Search at its best (or, say, Kagi), vs LLM Chat at its best, I would say there's an interesting open question, but I can see the case for chat winning.

But I think it's going to be like Kagi, you'll pay for a subscription to a good-enough one, but the main companies will try to make their proprietary ones too feature rich and too convenient so that you'll have no choice but to use their enshittified version. What we have now might be a golden age that we will miss having.

But, for better or worse, I do think what's coming may be a paradigm where they are effectively one big omniscient super-app.