I have also noticed the more detailed a query for technical issues, bugs or combinations of software, I have to rely on Google as well. My workflow is similar to yours. I silently hope this is just a matter of DDG improving over time.

But truth to be told, DDG is so handy with the shebang keywords, I search Google using it and only leave DDG in my Firefox search bar and specialize with !g !gv !gi as needed.

Actually, yeah, whenever I need to search for something code related I don't go to Google, I just redo the DDG search with !g at the end. The shebangs are incredibly useful for that.

second this. I've using duckduckgo for about two years so far, both in dekstop and mobile. This is a really google replacement, and we can search other sites directly with the shortcuts ..

github? !gh

wikipedia? !w

youtube? !yt

google? !g

images? !i

and there are tons of them!!