Hello Experts :-)  I apologize if this question has been asked/answered already, however I was unable to locate anything specific about my scenario on the forum.  I’ve ordered the Sonos ARC and already have the Apple TV 4K.  I am looking to upgrade my TV ...and considering a Samsung (for example:  Samsung QN65Q60T)  .  Samsung support told me they do not support Dolby Atmos.  I have a few questions below:

1 - If I connect the Sonos ARC into the eARC port on the Samsung TV, then the Apple TV 4K into another HDMI on the Samsung TV - would I be able to receive Dolby Atmos?

2 - If I connect the Sonos ARC into the eARC port on the Samsung TV and utilize the streaming Apps available on the TV itself, would it be able to output Dolby Atmos?

Thank you for your time and insight.