Hi @sidetrack Whilst music files should be located within the My Files app with Audio and Downloads being the most obvious as @xSteveuk has indicated sometimes Amazon Files can be in other places. Check the settings in the Amazon Music app settings- Storage Location which should give you an idea or you can amend that. Sometimes files are also hidden, If you go to File Manager Menu Bar and click the 3 dots there may be an option for Hidden Files and if so you should be be able to locate the Folder. More details in this articles https://gossipfunda.com/where-does-amazon-music-download-to-android/ https://www.fonedog.com/tricks/where-does-amazon-music-download-to-android
Whilst does not apply in your case just to mention that music which is downloaded for offline listening from the streaming service (accessed via subscription rather than purchase) can only be listened to via the Amazon music app .
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My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .