This is pretty much why I'm still forced to use Google's search engine. Their algorithm is simply just better due to the huge amounts of tracking they're doing. Brave browser's privacy features helps in this case I guess, to prevent cross-site cookies.
Then you might want to use
https://www.startpage.com/. Basically they pay google to use google search result and preserve privacy at same time, best of both world

As with DuckDuckGo, it has the potential. But if I understand correctly, for it to have better and more relevant results, more people need to use it. But then again, not much people use it because the results relevance isn't that good. 🤷
Because their search result isn't personalized and only works well on English language.