There are lots of DRM removal tool for Apple Music, and iTunes M4V audio files. But there are also many other DRM removal software for other streaming music platforms, such as Spotify, Tidal, Deezer, etc.
From the above suggestion, I can guess you have known which one is the best Apple Music Converter, but what about Spotify Converter and Tidal Music Converter to convert Spotify and Tidal music files for playing anywhere without a problem.
Fortunately, there are lots of professional music converter on AudFree, you can visit and find the target DRM removal program as your purpose.