Right now, this data (album vs show) comes to Roon from nugs, and we take it “as is” – if nugs classifies a piece of content as a show, you will find it on Roon’s Artist page, under the Shows tab.
There’s some grey area here – some content released elsewhere as an album is classified as a “show” in Nugs, which means it will be accessible in Roon.
As I mentioned here, for now our nugs integration exclusively supports shows. We look forward to integrating nugs’ album content into the Roon library and artist discography in the future.