I have to agree with Henk -- it is a mystery to me why one wouldn't support the only streaming service that offers hi-res music... Instead of Waitrose streaming quality, we get the Aldi of streaming -- Spotify...
I thought Tidal streams hi-res music too with an appropriate plan?
I too would love Qobuz integrated - mainly as I really want to upgrade to Sublime+ but as I cannot easily get gapless playback without purchasing and playing locally from a NAS I'm reluctant to do so.
I'm probably spending more purchasing hi-res audio from them than that upgrade would cost but at least I get what I want that way without extra apps on iOS/mac OS which don't help anyway (I cannot do gapless to a Nova using Audirvana).
I think HH may be correct that we're best using streaming for auditioning audio where absolute quality doesn't matter and buy those and stream locally from a solid performing NAS or computer.
We have to remember that not so long ago Qobuz was in administration until Xandrie invested heavily in it, so they may be struggling to strike up partnerships if hardware manufacturers don't want to risk a service going under after they invest time supporting it.
If the Qobuz app on mac OS/iOS supported UPnP playback of cached non-purchased audio that would be a real plus as I don't like Airplay.