Question: qutebrowser is a web browser for Linux, Windows, and macOS operating systems whose default search engine emphasizes protecting searchers' what?
Sentence (from "DuckDuckGo"): DuckDuckGo emphasizes returning the best results, rather than the most results, and generates those results from over 400 individual sources, including key crowdsourced sites such as Wikipedia, and other search engines like Bing, Yahoo!, Yandex, and Yummly.
Relevant evidence: No