papillon,
Maybe I can help.
Qobuz is not as good sounding as Spotify.
Spotify is the best sounding streaming service out there; I have been saying this for at least seven years. I have not once ever compared it against Tidal, Google Play, Qobuz, etc. and thought otherwise. I have compared over computers with various players, in addition to iPod, iPhone, iPad, and several Android phones. I have played back through attached speakers, bluetooth speakers, headphones, and hi-fis.
Spotify always sounds best.
Occasionally, on first listen, a competing streaming service sounds *impressive* or more "hi-fi" or seems to have more bass.
The absolute best I've heard Spotify is over a Windows XP computer on a player called Fidelify, which sounded great. That player alerted me to the importance of removing digital volume controls and features from a player which greatly improved Spotify's musicality. The search and recommendation features are nice on a player, but if you want to just listen with the absolute best quality, there should be a selector to turn off all features and enjoy a playlist in the purest, best quality possible.
I am a firm source-firster and find ethernet cables, switch, and wi-fi makes a larger contribution to sound quality than some streaming service differences. This also includes the combinational order in which items are connected.
Ron The Mon