It is extremely bad that MacOS does not have a volume mixer like the one Windows has. I don't know if this would be possible, but if so, adding a volume controller to Orion that controls its volume (like the one that YouTube videos has) would be an incredible addition. A web browser is many people's most used app and having control on its volume individually would help battle the challenges of no master volume mixer. 
This would allow users to have the freedom of a master volume mixer. Although it would only control the volume of Orion, a browser is usually the app that you would control if you had a master volume mixer like the one in Windows. This is a flaw of MacOS but Orion has been making so many great changes and I believe that even this problem can be solved by the amazing team that you guys have.