They do some treatment to the results too + internal data from them, it’s not copy pasted from Bing, so the results turn out different for duckduckgo and other Bing downstream search engines.

This might be Bing, i noticed that Bing always returns the worst thing possible.

I configure the engines to use brave, duckduckgo, google, qwant and yahoo, always give me good results, might be the law of large numbers in action.