If it's not too much trouble to ask, is it possible that someone could do this for the updated/nighttime music and the recently introduced Raid Battle music? Thanks in advance!
You could also use UnityPAck, which decodes the audio for you, but setup is somewhat involved if you don't already have Python, and it has some dependencies that have to be installed separately. UnityPack
for all the dependencies mentioned and unitypack itself. I think that's how I got it to work. Make sure to use python3, and not python to run the script.
How to rip Mew BGM? by makomako at 11:28 AM EDT on July 6, 2019
I searched for apk and ipa but I can not find the battle bgm of Mew...