Comparative Speed
Browsing the web means that searching is a mediated experience, and speed is a key consideration. However, searching involves complex criteria when sorting through millions of search results; therefore, the issue of resources is essential for proper algorithmic understanding. With a better infrastructure, Google has greater capacity and resources to offer a fast experience, in addition to returning results instantly. DuckduckGo.com isn't far behind in this regard, but the search experience is slower for the same reasons mentioned above. Likewise, the speed with which Google captures information makes it better than DuckduckGo when it comes to searching for contingencies.
On Content Quality
With its larger user base, Google is not only a benchmark for search results, but also a benchmark for website promotion. Websites and the companies they support depend largely on their ranking in the search engine, with significant investments in SEO (Search Engine Optimization) and SEM. In this sense, only those who invest appropriately will rank. This replicates the trading system. DuckduckGo, on the other hand, is more impartial when it comes to ranking in the search engine, so the content in the search results more accurately reflects the keyword used, giving richness and relevance to its results.
On Data Privacy
This point is almost obvious. Google sells our information, interests, and tastes to advertisers so they can show us ads. In addition to Gmail, Google Suite, Google Maps, YouTube, and other excellent systems comprising the search engine and seemingly indispensable for using the internet, our information is monopolized by an institution with a vested interest. DuckduckGo was born in response to this phenomenon, with the motto of information security and privacy, without logging user information.