Earlier quoted context omitted.
I made the switch to DDG as my first search engine of choice a couple of years ago and when I am dissatisfied with my DDG searches, I usually compare them to !g and !b searches and find they are only infrequently much better. I think it takes time to learn how best to query DDG. I originally started to use DDG when Google buried Google Scholar queries and I found using the !gsc query more convenient than working with…
I just wish DDG would make the bang options available as a button, so I wouldn't have to type them on mobile. Adding "!g" to an existing query requires 7 taps, versus just 1 for a button (!) I guess I'm stuck with Google search.
Just define a search engine with the search string "duckduckgo.com/!g%20%s".