The example further down about the moon landing is a much better example though. Its a lot worse right when some political event happens. Like if trump said sonething really controversial and you search for more context around it, on google top results would all be articles about how shitty the thing he said was whereas on DDG youd have a greater probability of actually getting some context.
Like when pandemic was in full swing trying to get information that was against the mainstream narrative was impossible on google but was doable on ddg.
This might not be like an active decision by google but their results do skew really heavy left. It might just be a function of popularity rankings. But id imagine ddg uses a similar ranming system so not sure what makes the difference.
There are times tho when ive searched for something I know exists like word for word and it still wont come up on google but will on ddg so, go figure.