Sadly, Firestick 4K does NOT support Atmos with Netflix.

Interested to see how Music Unlimited compares to Tidal. I love the quality on Tidal, but agree that the interface isn't quite as good as Spotify. It's also missing some content.

Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)