Similar to @Jim_F, I add albums to my library when I discover a track or artist I like when using Radio, looking at new releases or from What we are listening to [2019]. If I enjoy what I hear I may favourite the track, but rarely an album. I’ve no favourite artists.
Roon favourites are unique to Roon. When you favourite an album in TIDAL it is added to your Roon library: TIDAL favourite ≡ in Roon library, not Roon favourite. Adding a track or album to your Roon library lets you do more …