I have just downloaded new Catalina to my Mac. The new Music App (old iTunes) does not have 'genre' in its library as a separate category. I worked out that you need to select Album>View>Sort By>Genre. The result is one large list and NOT the individual list of genres as in iTunes. At this time my opinion is YUK!
How do I play a genre only and shuffle?
With one large list and genres bleeding into each I don't know how to isolate a genre (eg jazz) and play it only and shuffle within?
The Music App on iPad retains genre!