We (DuckDuckGo) subsequently made a help page to explain it in detail: https://help.duckduckgo.com/duckduckgo-help-pages/results/ne... Tl;dr: we don’t censor, we don’t move things so far down that they are effectively censored, we don't evaluate individual stories or narratives for "truth", and we don’t rank based on any political agenda or opinions. This is just a summary though so would read the help page for details.
I also put out a clarification thread about misconceptions that included this topic amongst others (like the fact that no, we’re not owned by Google), but the help page referenced above is the best and most thorough explanation of our news rankings. https://twitter.com/yegg/status/1515635886855233537