Absolutely! The saved search history is incredibly useful for shaping and filtering search results to make them more targeted and helpful. I also see more relevant adverts, and less generic ones, which makes them much less annoying. People of a certain technical mindset have a knee-jerk "Privacy! Surveillance! Evil!" response, tuned to the worst possible world type of scenario, where the rest of the Internet is populated entirely by malicious bad actors, seeking to harm users. The reality is much more nuanced: most of the rest of the Internet neither knows nor cares about you; the majority of the rest are trying to provide useful services to improve their users lives, sometimes trying to make money by doing this; a minority are bad, either trying to steal from or scam you.

In terms of Google search, the fact it retains context is actually useful most of the time, and the edge cases where it is harmful are easily avoided by countermeasures like logging out, using DuckDuckGo, installing Tor or switching to incognito mode.