I got much better picture quality on my Bravia when I turned off Dolby Vision and set format to 4K SDR with match frame rate and dynamic range on Apple TV.
I got much better picture quality on my Bravia when I turned off Dolby Vision and set format to 4K SDR with match frame rate and dynamic range on Apple TV.
If ARC isn’t working and optical isn’t working and the display isn’t working, maybe you need a new soundbar.
Have you tried plugging the Apple TV into the soundbar?
I had a Roku Ultra. Apple TV 4K is sincerely, substantial better.