It would be great if Brave offered the option to control the volume on each tab separately (also by window). Sometimes you have to move between tabs and their volumes are so different, you spend too much time correcting your speakers/headset. Also, sometimes you want to have a music tab open playing at a low volume in the background without having to turn down everything else.
As great as Brave is, I’m surprised it’s not already standard.
Anywhichhow, I hope it’s a request you take seriously - others WILL love it too!
I would love to see that feature too. But just for the time being there are multiple extensions available in the chrome webstore that can do exactly that for you. I used “Voume booster” in the past. You can adjust the audio volume for each tab independently with that extension. There are other extensions available that offer similar functionality.