Apple TV 4K hardware support
Just got 4K Apple TV and need to use a compatible sound bar with LG OLED 55 inch TV. Seems maybe problems with Sonos Beam. Can you recommend a product to use that will be compatible with Apple and LG.
For Dolby Atmos support, it is recommended that the Apple TV connects to the audio equipment, which has video passthrough capability to the TV. Not many soundbars will be suited for that hub functionality. The soundbar should support Dolby MAT.
To connect the other way around, the TV should have the ability to passthrough Dolby MAT, which requires eARC on the TV and the functionality for this type of passthrough. The soundbar should support Dolby MAT.
Play audio in Dolby Atmos or surround sound on your Apple TV - Apple Support
My personal recommendation would be an AV receiver with multiple speakers, instead of a soundbar. But many households have a partner with different aesthetics that might object to such a setup in the living room. It is also a very different price range.