Interesting, as the incredibly poor results are why I am still not using DDG. It's like a worse Bing, and Bing is already terrible.
You are btw correct that Google results have gotten worse. There were studies run that confirmed this. The very same studies found that Bing (and by extension ~all third-party engines) have also gotten worse, and faster so than Google. In other words, search as a whole has gone to shit, which anecdotally matches up with my repeated attempts to swap to DDG every 6-12 months that just result in learning to add !g to every single search, so I might as well skip doing that.