While uBlock inside Brave suffers from the same limitations as uBlock within Chrome, the more interesting question is if Brave's native blocking makes that irrelevant or not.

Brave does have a few intriguing privacy features, like plugging WebRTC IP leaks while still allowing use of WebRTC (Firefox is off or on while Safari's always on AFAIK), so that's not excluded.

The main problem with Brave is that they're building on a browser which is designed to leak privacy like a sieve. It seems that they're being careful and monitoring all the anti-features Google's adding, but who knows.