Google still beats DDG on local search and providing latest results on news updates and other changing events. On more technical and stable topics, DDG is miles better and doesn't drown in clickbait or ads like Google does. These tend to be 99% of the searches i do throughout a day, so using DDG first is a no-brainer. The best way to describe it is it works exactly like google did 5-10 years ago, without neither the improvements nor the regressions that has happened since.
For truly rare and unique searches, Google undeniable has a bigger index, so cases where searching for a unusual error code 0x004104010 give you nothing on DDG, Google could find one poor soul in an obscure Korean forum, that solved the same issue and then translate the result, just enough for you to recover your broken data.