This was briefly discussed on the Qobuz feedback thread.
There are two layers to this. Qobuz themselves have an issue and here are various remedies they have started to introduce that partially address the issue with their native apps. But I don’t have the impression that roon/Qobuz are actively discussing integration remedies. It was hinted that Qobuz now had a “global_id” that can cluster available and unavailable releases. That sounds like that would be the basis of a solution but no doubt there is much more to it.