For my set up (Beolab 50), Apple Music was a big improvement.
With lossless sound, you improve (by far) the dynamics (coming from Spotify family).
Dynamics are in my opinion the most important , then the sound quality (definition) improve a lot bass clarity and … definition.
Since several days, we can find online some infos about a Spotify Platinum (HiFi) plan. How will it be implemented in B&O stuffs… that’s another question…