Roon operates its own search indexes, which are populated with bulk dumps of Qobuz’s full catalog daily, so searches performed in Roon terminate within our infrastructure and Qobuz is not made aware of them.
I am going to refer back to the the privacy policy to answer this.
The privacy policy addresses where personal information is held:
- Your personal information (name, email address, password) is stored securely in our account database and is never shared with our partners or other third parties.
To clarify–the account database is a separate database from our machine learning systems with separate access controls. People working on machine learning systems do not come into contact with personal information in the course of that work.
The privacy policy also addresses radio and the concept of “taste profiles”:
For the development of radio and other features, Roon builds musical taste profiles based on your play history.
To clarify–this taste profile is linked to an opaque identifier and is not stored or processed alongside personal information, as @anon47919701 guessed.
Disclaimer: I am not a Lawyer. The Privacy Policy is the official source of information on these topics.