I imported an album, had it immediately recognized by Roon, and then exported it. The purpose wasn’t nefarious, just a curiosity experiment.
What surprised me was that track titles were reworked, but practically none of the credits that appear on the following page were sent:
I would have expected anything that was found in the DB as a file tag info would be part of the export, not unlike a tagger program. Trying to understand.
And, protestations to the contrary, Roon is a tagger, at least in part.