If you are considering the Kagi search engine, there are aspects you should be aware of from an ethics perspective.
Russian ties (Yandex) and support of Grok (yes, the Twitter LLM that promotes fascism):
khevans.com/2025/08/21/k...
Good walkthrough of the ”anonymity” aspects of Kagi as well:
マリウス.com/doubting-you...