>you actually do not provide evidence for this
I did, I listed 1 big evidence (the lack of indexing client-side rendered HTML), and also a simple example "rust vs go" that came to my mind. Take another example that I just tried, search "classical music only" in both engines and see the difference, this is a very popular youtube channel and has a website but nothing is shown in DDG for me.
As much as I want to join you guys against the big fat lazy monopolist called Google, I can't just make myself blind and claim that DDG is anywhere near to Google when it comes to accuracy or sophistication. If you really appreciate privacy, why not try something like Startpage instead of hyping another for-profit company?