Then you'd get bubbled and tracked just like if you use Google, although you'd avoid AMP. DDG uses Bing and other sources, it's not literally just a wrapping of Bing.

Not just Bing. They use many sources and I think they do some indexing on their own. IIRC Yandex is one of the sources too.

Does Bing have "bangs" such as !gm for Google Maps, !gh for GitHub, !wa for WolframAlpha and so on? With no user tracking?

I was a heavy user of address bar search prefixes, but it's amazingly convenient to not have to think about it until the very end of a query (or even add it in the middle).

That's not true.