What changes when you add an SFU (Mediasoup) in the middle of the pipeline?

Most WebRTC discussions about bitrate are wrong. Not because people don’t know the APIs, but because they don’t control the experiment.

So instead of asking:

“what bitrate should I use?”

I built something slightly different:

a reproducible WebRTC benchmark to measure how codecs behave under controlled conditions

This is what came out of it.