WebRTC vs Unity vs Photon Microphones

Ok thanks, but in that case should I just remove the WebRTC component if it's not needed?

Also, we often get an issue where the microphone audio from one person will suddenly start to repeat a short part of their last word. ie: if the user says "goodbye" the audio will just repeat "yeyeyeyeyeyeey" for a few seconds for some other users. Seems like the audio doesn't get stopped but keeps repeating until the buffer clears at some point.

Not sure if this is just when there's lots of people.

We usually have AGC, noice and echo cancellation on for all.

Ok thanks we'll try that, and regarding my 2nd question:
Also, we often get an issue where the microphone audio from one person will suddenly start to repeat a short part of their last word. ie: if the user says "goodbye" the audio will just repeat "yeyeyeyeyeyeey" for a few seconds for some other users. Seems like the audio doesn't get stopped but keeps repeating until the buffer clears at some point.

Hi, we were using 2.16, but I'll try the new version.

Here are the recorder settings:
https://share.getcloudapp.com/2Nu5rODO

Playback Delay is 200ms

Here's a recording of a similar effect, though this was from a long time ago, but unlike this video, the game no longer suffers a freeze or performance issues during the voice problem and the length of the repeated section is much shorter, only a part of a word usually rather than a few words like this example. But similarly it goes on for a while, sometimes forever until the player who is causing it unmutes their mic.
https://share.getcloudapp.com/z8u8n0n8

We use this to mute:
photonVoiceRecorder.TransmitEnabled = !photonVoiceRecorder.TransmitEnabled;

It does seem that this happens the most when a player mutes themselves. Usually unmuting and muting again will resolve the issue but the player who is causing the issue will never hear it themselves.