I feel the same. LLMs using web search ironically seem to have less thoughtful output. Part of the reason for using LLMs is to explore somewhat novel ideas. I think with web search it aligns too strongly to the results rather than the overall request making it a slow search-engine.
That makes sense. They're doing their interpretation on the fly for one thing. For another just because they now have data that is 10 months more recent than their cutoff they don't have any of the intervening information. That's gotta make it tough.