It really depends. If I want to search coding related stuff, I want this to be personalized as much as possible, with always having the option to extend the sea

It really depends. If I want to search coding related stuff, I want this to be personalized as much as possible, with always having the option to extend the search for non-traditional topics. Or when searching for places to go, it would be nice to get recommendations which consider that I love to ride bicycle. Then there's DuckDuckGo on Firefox for legacy search if you're paranoid.