The built-in AdBlocker in Brave is based on AdBlock Plus, so it is not as powerful as uBlock Origin.

In addition, there are some concerns about privacy, such as the following, which was previously covered by Hacker News.

Brave, the false sensation of privacy

https://ebin.city/~werwolf/posts/brave-is-shit/

Furthermore, people who value privacy are probably averse to virtual currency, which is a hotbed of environmental impact, money laundering, and fraud, so I don't think Brave is an option for them, as they can't completely turn off (or hide) the virtual currency feature.