[How to do instruction] Pi Zero 2 W: Fix choppy bluetooth playback (updated firmware package now available)

[Mikka123T]

I am having audio stuttering when I am connected to Bluetooth speaker with Moode Audio 8.3.6 installed on both RPi 0W and RPi 3B. It also affects 8.3.5. After I have returned to 8.3.2 problem disappeared.
I have also applied fix as per main post.
Is there anything I can provide to help debug?
Michal