Ok did a quick check and test…First check res is at 4K, Dolby Atmos is On. Tried to start Zwift, kaput. Go back and change Dolby Atmos to Off. Touchdown - YES! All good for now. But i noticed no in-game sounds. But if I exit Zwift and come back and start a new ride, I get in-game sounds!
PS. DC Rainmaker, big YT athlete did an Apple TV 4K review of new model and old with Zwift. Please check his latest video on that.
Just some hints from his video and hope to see these in the future releases: 1. New remote button functionality working in Zwift. 2. Shadows on objects other than the bike itself. 3. Better, improved graphics. 4. Not sure if this is Apple limitation but more BT device connectivity other than using the Companion app. Bottom line summary as of now, do NOT upgrade to the new Apple TV 2021 yet till Zwift makes some improvements!