Brave has certainly said a lot of good things while doing quite [0] a lot [1] of bad [2] things [3] that make me think it's mostly just marketing to lower-knowledge users that's carrying it forward. I see so many 'privacy' influencers that recommend it and Chromium, and then Firefox with no mention of FOSS options like LibreWolf, Tor Browser, IronFox, etc
[0] https://github.com/brave/brave-browser/issues/15790
[1] https://www.zdnet.com/article/privacy-browser-brave-busted-f...
[2] https://www.xda-developers.com/brave-browser-installs-vpn-wi...
[3] https://www.atlas.science/news/the-shady-world-of-brave-sell...