By stuttering, if you mean video stuttering, I used to experience those a lot; I installed Brave for that very reason, because Netflix, Twitch, etc. were perfo

By stuttering, if you mean video stuttering, I used to experience those a lot; I installed Brave for that very reason, because Netflix, Twitch, etc. were performing pretty poorly on Firefox (on a 4GB RAM low end laptop). But I very rarely experience that these days, to the point I've switched back to Firefox for those sites too. But general performance-wise, Firefox is so easily better than Chromium in my experience, it's not even a competition. Firefox with hundreds of tabs open performs better than Chromium with 10-20 tabs. It's more responsive to interactions, uses less memory, and is much less likely to freeze up. With Chromium, I have to constantly keep a watch over open tabs, and close them mercilessly, or suffer from overall system slowdown and a browser that's almost a slideshow.