All the features of "iTunes Match" are included in Apple Music as long as you have "Sync Library" turned on.
For a while there was a subtle difference in that music uploaded to Apple Music would have DRM applied to it, and iTunes Match would not, but this is no longer the case.
I was scared of turning the subscription off, but no, it's fine. My own library is still there. They used to have a terrible matching algorithm for Apple Music, different to iTunes Match, but switched it pretty early on. I've had no issues for a number of years now.
Oh wow… If it is, I will probably rethink my subscription. I have uploaded a lot of music I bought in other services or ripped legally from CDs I physically own, adding DRM to things I own feels immoral to me.
Wish there were more alternative mobile OSs and platforms. Apple is getting on my nerves too much lately.
Likewise. IIRC Apple Music is a lot more (3x?) expensive than iTunes Match so not sure if the price increase would be worth it to me. But my thinking it wouldn't track my library was what made Apple Music a nonstarter for me.
For a while there was a subtle difference in that music uploaded to Apple Music would have DRM applied to it, and iTunes Match would not, but this is no longer the case.