2019 QE65Q70R

[GarryK98]

I have Sky Q and a 4K player as inputs to my TV and am thinking about a bose soundbar that is Dolby Atmos capable.

Does my TV pass through Dolby Atmos as DD+ ?  It appears as an option on Expert Settings for sound using the HDMI ARC but is greyed out and can't be selected (but is this because I don't have a connection in the ARC at the current time ?)