With about 150 views and not one chiming in saying they want the same features, I assume I am the odd one requesting these features.
Mosaic follows Qobuz, so I sort my music the way I want them using Qobuz’s web interface.
You can que albums/playlists and tracks manually in Mosaic, to play them in any order you want. Roon or mConnect will allow you to sort your folders/playlist the way you want.