I've used Brave on my phone, but I wasn't all that impressed with it. I was looking for alternatives to Chrome that would run faster and that is how I found Brave (also, Opera and Puffin (IIRC..))
At present, I am currently using a Samsung provided browser on my phone.
Since I am a Mac user at home, I run Safari most of the time but I also have Firefox as well. I've had no reason to move away from Safari on my home computer.
When I was using Brave, I did find a few pages loaded a bit strangely but everything I visited (again on my phone) worked. I like using a not-so common browser since most nefarious attempts to do bad things to your computing device are geared toward exploiting the most commonly used pieces of software.
I did NOT (and will not) do any personal finance (or any PII related) things on my phone.
Ron, are you desiring to use Brave on your home computer and / or on your mobile devices?