[kibae]

I switched to Brave last week after the whole Firefox fiasco. I installed uBlock Origin after there were some ads that got through.

e.g. on DuckDuckGo.

[antonok]

There is an Aggressive setting for Brave Shields, which you can set either per-site in the Shields menu from the URL bar, or globally in brave://settings/shields - that should take care of SERP ads and other first-party placements.