I think it depends on what youre asking for. Some search engines, not always AI but sometimes, I ask it really quick questions and I get answers. There may be calculators, conversation tools, etc already in the search.

I.e. what is 42 days from today. What's the release date of X game, etc.

I haven't had the time to switch to kagi yet but I have DDG and was just too lazy to turn off their AI feature. Didnt really bother me one way it the other. If the AI search doesnt answer my question I just move onto normal links. Again, for simple inquiries it just spits out the answers for me without having to click anything.