I’ve tried to replace Google with both DDG and Bing. Both of their results are frankly terrible compared to Google’s. Google’s transition to its current hybrid Ask-Jeeves-style question/traditional query search engine, along with its inline answers above the result list both blow its competitors out of the water. Google also does a much better job of letting the user know the freshness or up-to-dateness of results with its inline last-modified/updated time stamps.
Both of those things have made it impossible for me to switch off of Google without immediately having problems quickly finding relevant, up-to-date information on the web. I do desperately want to switch, though.
I also especially despise AMP. It constantly breaks websites and itself, especially on iOS.