I have implemented CameraStream base on webRTC. It doesn't work on Chromecast and says "Sorry ,it looks like the cameraName doesn't support streaming to remote screens." But it works fine on Google nest Hub.
I'd like to know which equipment is supported under webRTC.
Right now the chromecast devices do not support WebRTC protocol for camera streaming. However we are working to expand the supported protocols on our devices. You can post a feature request at https://issuetracker.google.com/issues/new?component=655104&template=1284148
New generation Google Nest Hub family of devices should provide support for WebRTC streaming.