Qobuz Subscription/Player v.s. Roon Service Login

What is the relationship between one’s Qobuz license and Roon’s login to Qobuz?
It seems as though you can log into both simultaneously, but only sometimes.
How is that managed? Should I be explicitly logging out of the Qobuz web app or desktop app before trying to use Qobuz inside Roon?

If I’m just running the Qobuz desktop app, and my wife launches her desktop app, it kicks me out. That’s what got me wondering.