Some like Phind or Perplexity cite their sources. And they give you directly the answer you’re looking for without having to search it in a mess of “subscribe to our newsletter”, “other articles that may interest you”, 3 paragraphs of “if you read this article, you will know what you want to know”, “special promotion for you”,…
Like Windows, Ubuntu is installed by default on many computers. In my university, all the computers have a dual boot Ubuntu Windows.