I tried both Safari and Chrome of macOS but went back to Firefox for one simple reason. When watching streaming content if the browser was not in the foreground it would reduce the quality of the streamed content which could take almost ten seconds to revert back when focus was given.
Firefox doesn't seem to know/care if its not top window
Safari user, always play videos in a background window, never seen this. I suspect it’s not the browser’s video playback but perhaps more to do with how it handles spikes and drops in connection quality?
Firefox doesn't seem to know/care if its not top window