Audio is flickering in RTMP stream, this has been happening since the first Beta that introduced RTMP and has not been fixed yet.
I asked in my ROM group if anyone else was having the issue, and there is no one.
One way I found to solve the issue is to use some Telegram third-party application that has the option "use media stream in video chats", which used to be present in Telegram's Debug menu but is no longer
Steps to reproduce
Go to any RTMP Stream in a group or channel
Device info
Redmi Note 7 (lavender)
Android 12 - Arrow OS 12.0 Weekly
Telegram 8.6.x (reproducible from the first beta to the current one)
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Telegram Andorid: 10.13.3 (4854).
Redmi Note 8 Pro, Android 11.