@s73nm is not a staff member of Roon Labs - he’s a customer, just like me.
The requirement for supporting multiple streaming accounts is understood and I encourage you to vote on the existing Feature Suggestion:
When Roon first came on the scene, 10 years ago, it was designed to have multiple profiles, but did not have any integration with streaming services at all. That came later.
Edit: I’ve been told that Roon did in fact launch with a Tidal integration (Qobuz came later and KKBOX came later still). Tidal however, had not yet debuted their family plans. So, Roon created streaming integration mechanisms and database decisions, prior to these streaming services offering family plans.
I suspect that it’s a tricky architectural issue to retrofit support for multiple streaming accounts and map them on to Roon profiles.
However, Roon Labs are aware of the requirement, and we will just have to see what will happen.