The trick to get Bing to give you the best results are to change your region (on bing.com) to United States. There are tons of features that are only enabled if you are in the US.

Probably because both use the information they're getting from you to actually improve their services. And that's (probably) fine, since you're giving away your information to get a better service.

I want privacy but I also want good services, Duckduckgo for example gives me a good privacy service but its searches have nothing to do with what I wanted to find.

Google is still the best for very Australia specific searches, and still better than others that scrape from Google. But for most scenarios DDG suits me.

Definitely agree. Most of my searches are mundane and I don't have an existential stake in whether they are slightly "better" or "worse" than what I would get from a different search engine. I always start with DDG because I don't like the business models of its other main competitors. But if I don't find what I am looking for (and believe should be findable) I hold my nose and switch over to google.