You've been hiding ads, sure.

You haven't been blocking them, because iOS with Safari didn't allow that.

Hiding, and blocking, are not the same thing. The former is far less secure than the latter.

As for blocking ads on iOS with Brave, well, it really doesn't work that well[0]. Why? Because iOS doesn't let you block ads, unless you are in the EU and on 17.4 or later.

You should exit the RDF and really do at least a bare minimum of research.

[0] https://community.brave.com/t/is-brave-even-blocking-ads-on-...