Be clear about your suggestion or feature request.
Let's say I use your browser to play games, but also to listen to music and read. I have bluetooth speakers for which I have to open Firefox and use it to play music instead of just opening another opera. Unfortunately, multiple windows of the same application do not show up several times in the audio settings in Windows preferences.
It would be interesting if implemented as it is a gaming browser. Opera, too, always had something that other browsers refused to implement. Like, for example, the super useful tab when loading. Which after so long, other browsers start to use as default.