Brave vs. Firefox vs. Safari?

Absolutely. I’m pretty agnostic with my iOS browsers, given the Apple-imposed limitations. I’ll use Safari, Chrome, Firefox or Brave (or even the DuckDuckGo app!) pretty much interchangeably, and when I need a site to show me the desktop version, like some banking sites, I’ll use iCab (review here), which lets me change the browser ID to tell sites I’m using Chrome_60 on Windows. So I’m not recommending a specific 3rd-party browser on iOS.