Ecosia:

Requires to be logged in though.

haven’t used Google’s search engine for a long time, but a quick test seems that appending -ai to your search still returns results without the AI overview at the top of the page

the results are still loaded with trash and ads, though, and this won’t work if you’re searching via voice on your phone

https://kagi.com/

it is paid. if you pay, you are a customer. if you get it "for free", you are the merchandise that is being sold and the merchandise is not really expected to complain.

If anything on any page bothers you this much, just install a custom CSS extension on pretty much any browser and remove the element