Question: how to change youtube audio settings?
Answer: In the YouTube Music app, tap on your profile picture.
Select Settings.
Tap Audio quality on Wi-Fi.
Select one of the available options: ​Low. Uses least data. Upper bound of 48 kbps AAC. Normal. Default setting. Upper bound of 128 kbps AAC. High. Uses additional data. Upper bound of 256 kbps AAC. Always High.