Brave is the only Chromium browser recommended by Privacy Guides which is why I chose it. It has a good update schedule and I never have problems with ads.
Once I set it up, it's been just a clean, ad-free browser. Based on Little Snitch, which is free on Linux, like Brave Origin, Brave has a clean list of default connections.
While Firefox may be considering shipping Brave shields for ad block, wouldn't Brave be more opposing to Google's monopoly considering it blocks their business model? Firefox is funded by Google and has bad privacy by default. It connects to Google servers when you first set it up.