Microsoft does not normally release data on the performance of its in-house search engine and browser. However, a new leaked slide may give an idea of how Bing and Edge are doing. Apparently, Bing has over 450 million monthly active users and handles 10.5 Billion queries per month.
https://www.notebookcheck.net/Are-Bing-and-Edge-really-duds-Maybe-not-according-to-new-leak.424908.0.html