When I initially signed up for Roon I was a subscriber to both Tidal and Qobuz, hi-rez versions. At the time I had a poor Internet connection and older router and modem. My Roon library was predominantly Tidal versions of albums since the MQA versions did not cause as much of a problem with dropouts as did the full FLAC 192/24 from Qobuz. I was ok with that and at that time my searching of Tidal and Qobuz indicated Tidal had more titles (that I liked) in hi-rez format.
Recently I upgraded my Internet service, modem, and router. I can now stream over Gigabit ethernet without problem. The Qobuz higher rez versions play without dropout. So, I diligently went through the over 2000 albums in my Roon library checking the Tidal versions versus the Qobuz versions. Whoa! Was I surprised.
Only a handful of my library albums were in Tidal but not in Qobuz (I would say about 75 albums but most of those were in my Apple Music library so I copied them over to my Roon Core, leaving less than 10 albums only available in Tidal).
But the big surprise came when examining the hi-rez versions available for albums in both services. There were dozens of albums with higher rez versions in Qobuz than Tidal. There were maybe 6 albums with higher rez versions in Tidal than what was in Qobuz. This was way different than what I had seen only a few months ago. Qobuz has been busy!
Note that my library is predominantly Rock/Pop genre with some Classical and other genres. I do not know if Qobuz is superior to Tidal for libraries focusing on other genres. I suspect Tidal may be better at Classical but my sample is too small to say. This evaluation of these two services’ hi-rez offerings is primarily for the Rock/Pop genre. YMMV.
So I moved all of my Roon library to a combination of Qobuz and local storage from Apple Music. I did some of this manually and some using Soundiiz to transfer artists, albums, and playlists from Tidal to Qobuz. It was fairly painless but not completely painless. Then I unsubscribed from Tidal. I am a very happy camper now. Thanks Qobuz!
Note: I am not knocking MQA here. I am applauding Qobuz. I found MQA very useful when I had a poor network connection. It serves a purpose and some people prefer the sound of MQA. Different lanes for different brains. Enjoy!