I don't use it at all. I'm not a citizen of the country where I reside, and so I generally avoid doing things that would make me look like a foreign intelligence asset.
Yeah, I've been using it. I was already using Brave to throw E-shekels at Null so not needing to grab the full TOR browser was handy since I'm only using it to circumvent black-holing or the occasional DDoS that misses the TOR site (typically I just do kiwifarms.net through a TOR window). I was using full TOR on mobile but it wasn't worth the hassle. I understand why it is like it is but it's not conducive to a general browsing experience so if I get hit with the black hole on mobile I just wait til I'm home
I found Brave + TOR to be sufficient for short bouts, but it seemed to have issues the longer I used a given window for, seemingly related to maintaining connectivity to TOR.
Switched to the actual TOR browser since and it has not had those issues.