Brave is a bad product as of now.
Firefox with ublock is at least acceptably performant on desktop and mobile without all the crypto/tracking downsides of Brave or the open unpatched vulnerabilities (as of this posting) of Chrome/chromium (that also affect Brave)


Firefox allows all addons now on mobile but for a while it was only a few selected addons (ublock origin being one of them)
I am currently using 19 extensions on mobile