Flutter seems to keep the camera on 100% of the time which prevents apps like Skype from using the camera for video chats. I'm not sure if there is a good workaround for that?
Andrew - great observation. On top of your menubar, there's Flutter icon. Click on it, and it will give you simple flutter on and flutter off capability.
Feature Request: Designate a gesture to turn Flutter off.
Great idea. Although, you probably will have to turn it on manually.
I was able to use FaceTime on my Mac while still using Flutter.