Hi again James!
I’ve find out a workaround (Still some polish needed) But I can add an Emby playlist to favorite and show it on the main screen although instead in the playlists section on the favorites section, which is OK.
So I can add an Item to a playlist (this is definitely not working ok since you always have to create a new playlist you cannot select an existing playlist) and then access directly as a favorite item. The only thing that still is not good from an UX perspective is that under playlists, grouping doesn’t exist, it’s fine for movies or single episodes, but if I add a complete TVShow to a playlist, every single episode will be shown instead of grouping the TVShow as a single item as any other different folder, the only one with this behavior is playlists.
If there’s anything I can do to clarify, help, investigate, etc, please let me know, would be glad to help to improve this.