Just from my experience:
Qobuz/UPnP -->BubbleUPnP Server (on RPi)-->272 and using Lumin/Kazoo. It does work, but..it works for 90% of what I was accustomed to (Naim app/Tidal). If you pause the music and want to resume, both apps will start playing from the start. Fast forward doesn't work. If you press the stop button on the Naim remote, no luck, next track will start playing, you can only pause. Music wise very good, to me comparable with Tidal. Switched back to Tidal because of native integration in the Naim app
If you let bubbleupnpserver transcode the qobuz stream to wav on the fly, it sounds a little bit clearer, at least on my uniti1 with streamin board v3. Also I am able to seek inline the track with a new beta version of the server by switching to the naim app. So I think the next official version will work, too.
If you stop a track on the streamer side with the naim app or normal remote, bubbleupnpserver thinks that it has finished playing and offers the streamer the next track to play. So you need to stop using the lumin/kazoo app. This way the BUServer knows that the music is stopped.
pausing and resuming a track with the lumin app indeed does not work. But using the naim app or remote does work. After a while I have got used to it. It is not perfect but works quite good for me.