> iTunes Match is officially part of an Apple Music subscription
This is not correct. The matching that you get with Apple Music is different, it applies DRM to the unmatched files when it uploads them. iTunes Match will just upload your original files.
I know this because I was relying on Apple Music to sync my tracks that it couldn't match. It worked fine for a while then suddenly stopped working for all my uploaded music. After talking to various folks at Apple it was decided that the DRM must have gone wrong somehow and the only resolution was to delete and re-match all my music again.
I haven't got around to that yet and have been considering moving to iTunes Match to avoid the application of the DRM to my uploaded music.
Update: The DRM thing is no longer true! Thanks to some replies for correcting me. I just uploaded some music and it downloaded as a mp3 rather than a DRM m4a. That's great news!