Still missing from Bing. So this is DDG inserting an override.
https://help.duckduckgo.com/duckduckgo-help-pages/results/so...
"We also of course have more traditional links in the search results, which we also source from multiple partners, though most commonly from Bing (and none from Google)."
I've tried comparing Google, Bing and DDG on a private window before, and I didn't find Bing and DDG more similar than Bing and Google. Searching for monkey: https://news.ycombinator.com/item?id=27598329
Also, throughout this whole situation I always got the Github page as the first result for "youtube-dl".