The new Teams search results experience features a re-designed user interface with four tabs aligned to the types of information users search most frequently: All, Messages, People, and Files. Using artificial intelligence, your search surfaces the most relevant results in an easy-to-read, full-page format. Plus, we’ve added a new question-and-answer search option that enables you to type a question in the search bar and get high-confidence answers.
I don’t use search all that much in Microsoft Teams - to be honest I never found it that useful....