I'm a bit apprehensive towards LLM-generated things in general but I also use this from time to time when I just want a simple fact or get a feeling of whether the page is at all worth visiting.
I limit myself to facts that are trivial to verify or should be very hard for an LLM to get wrong.
If I need to look up some function for example, I'd very quickly find out if it's just hallucination. I also expect them to return the right thing if I expect the result to statistically be the most common thing.
Though if I'm being honest, I'd probably prefer a function to just get an expanded preview with the entire preview text offered by the website for this use-case (or an equivalent plain text extract from the website).