"The Brave web browser has carved out a niche over the past few years as an alternative to Google Chrome, Mozilla Firefox, and other mainstream web browsers."
Excellent article my only criticism is that firefox is not a mainstream browser lol. Im saying this as a proud firefox user.
According to this page, no, it isn't. Chrome is in first place with over 60% global market share on all platforms, followed by Safari, then Edge, then Samsung, and then Firefox.