I sometimes need to use Tidal directly, when I’m on a device away from my home server. Ok, that’s a bad thing, I wish I had internet connectivity, but that’s a different subject.
But it would be handy if when I mark an artist or album as favorite in Roon, that setting would propagate up to Tidal. I’m ok with listening from Tidal but I don’t want to navigate from a blank sheet. A lot of stuff in Tidal – that would mean I would need to hold my library in my brain, think of the music I like and then use Tidal to look it up.