Zoom doesn't use WebRTC (which the article is about). They use websockets to send media through the pipes and decode using a webgl shader or similar.
I don't work for Zoom, but do work in the WebRTC space and read an article about it recently.
I don't work for Zoom, but do work in the WebRTC space and read an article about it recently.
like: https://github.com/kazuki/mediacodec.wasm
It could also be that they are using websockets to deliver MPEG-DASH/HLS segments for low latency.