The new mix is intended to position engine noise and track ambience around the listener. This is a particularly concrete reason to test a large TV and Sonos setup, but Atmos must survive the whole HDMI/eARC chain. A streaming badge alone does not prove the soundbar is receiving an Atmos signal.
Action: check audio settings and passthrough before the race, then compare a session in stereo and Atmos if the system supports both.
