I don't know about that. I see there being more general chatbots like ChatGPT. But vastly more specialised ones as well. It is not a zero sum game here, more specialised chat bots does not mean there will be fewer general ones. We are only at the start of this and both sides are likely to grow a lot in the coming years. But I can see specialised ones taking off faster at the same time.
This specialization never happened with web search. There are tiny exceptions but for the most part, Google was faster to figure out how to serve niche types of searches than niche experts were at providing an experience as good as Google’s. And anyway, consumers can’t be bothered to decide which specialized tool to use for things.