I’d say I’m somewhere between 90/10 and 70/30 (traditional search / LLM). Though for some subcategories/topics, that ratio is flipped (some technical topics for instance).
You can (and should) read the privacy policy (you could even use your favorite chatbot to help you analyze it). It is almost certainly not privacy-centric, I’m not aware of any prominent AI services that are. But there can still be meaningful differences between non-privacy-centric services. Short of self-hosting, which is not cost effective for most people, the only public/hosted LLM I know of that could be considered remotely privacy-centric would be Brave Leo, but that has its limitations and caveats.