Brave has been thoroughly tested from many privacy advocate organizations EFF and more known names using default settings and ranks as the highest overall rated fingerprint resistant and anti tracking protected browser, again at default settings I have ran many tests once configured and get even better results even against librewolf with and without extensions and vanilla Firefox with privacy badger and ublock ect as well as without. (I use librewolf on desktop for those who are gonna down vote this) Gecko based browsers are advised against on Graphene and is spoken in length about on reddit from one of their Devs. Chromium and google is a bad combo sure reliance on Google and all to begin with, but so is supporting Google to degoogle with a pixel device. Could brave be a honeypot? Sure and many other services. So could VPN providers and any service for that matter. The biggest advantage I see using Firefox is promoting a non google alternative and balancing the scale against googles monopoly. In some cases Tor adds risk due to it being a giant vacuum for govt or other malicious entities looking to snoop. Its like taping a sign to your traffic. I think it serves a purpose but that varies from each persons use case.