Keep in mind, the one critical difference between iTunes Match and Apple Music is that Apple Music songs are DRM restricted, and iTunes Match songs are not.
Practically speaking this is what this means:
You have Apple Music and you let it match up your library. You delete a local copy of a matched song (not an uploaded song), and redownload it, the copy you’ve just downloaded is now DRM-controlled and will not be accessible to you outside of Apple Music. Similarly, if you had a second mac, and rather than moving your iTunes library over you just log into iTunes and use iCloud Music Library via Apple Music, then everything you download (other than uploaded tracks) on that new system is DRM.
In contrast, with iTunes Match, if you delete a local copy of a matched song (not an uploaded song), and redownload it, the copy you’ve just downloaded is DRM-free and you can do whatever you want with that file (which is great if you are wanting to upgrade the quality on ancient 128kb MP3s you ripped in 2001). Similarly, if you had a second mac and downloaded your files via iCloud Music Library and iTunes Match, then everything you download on that new system is also DRM-free.
So think very carefully about what your needs are and subsequently how you manage files and local copies!