When trying to press on any kind of media files the shared uri will only work with the Google Music app, but will fail with any other existing player (VLC, MX Player, PowerAmp, ...)
Example of an uri returned by the file provider:
content://com.dnielfe.manager.debug.fileprovider/share/Media/audio/music.mp3
This works fine on a device running Android 6 or if changing the target SDK to 23