Wowza does not currently support a composite of webrtc streams. Wowza Streaming Engine can ingest source WebRTC audio and video content and deliver it to supporting players. It can also transmux or transcode WebRTC to other streaming protocols, including HLS, HDS, RTMP, RTSP, and Microsoft Smooth Streaming.
You can ingest one or a few WebRTC streams and deliver them to a few viewers via WebRTC. But, that is WebRTC to WebRTC only.
It sounds like you would like a live video chat conference with multiple people speaking back and forth and be able to share that on social media. The only option we have for that at this time is send a Zoom meeting to Wowza as RTMP and we will create a playback link for you to embed on your own website and for social media.
Wowza will be be releasing new webrtc features in the near future.