It's like de-Googled Chrome, as it's based on the same Open Source Chromium browser, has all of the ad-blocking and anti-fingerprint tools built in, and all of the Google taken out.
You can also run popular browser extensions published for Chrome, but you don't need to worry about ad blocking, as Brave has you covered by default.
It also blocks YouTube ads effectively, by default. There's nothing you have to do to make this work.