I’ve been using Firefox since the mid 2000s and aside from a few botched updates it works pretty well. I’ve pretty much stuck with it because it has a lot of useful plugins for customization and helps streamline my workflow.
Brave has been my main for years now. But, I also use Chrome and Edge. Sometimes a site works better on Edge than Brave/Chrome. Edge needs to fix the tab scrolling problem it has and then I might use it more. For those that don’t know, Brave uses the Chrome code and is more “secure”.