Speaking for myself only, but the fact that Roon keeps compositions together is the one “killer feature” that drove me to Roon in the first place. I always hated how pretty much every other player out there shuffles individual movements of multi-part compositions like symphonies, sonatas or concertos.
@Klaus_Kammerer1, the way I personally solved the issue you state for operas, oratorios and other long works is to tag them by acts (if not too long) or scenes, using work/part tags. That way, Roon may place a scene in the play queue which may be 10 or 15 minutes long, and then move on to something else. Works great for me and it has led to discovery and appreciation of great moments of opera that wouldn’t normally be what you would sample if you were to manually play the CD or even the rips via manual selection.
Granted this approach takes manual work for the tagging, but the results are more than worth it in my opinion.