The big question is are you using an AVR? If just TV speakers - auto or none.
Pass through is the only setting that reliably gives me good sound through my denon receiver (currently 5.1) via ARC. Auto kept defaulting to bullshit stereo pcm that my denon tried its best to pump out to the surround speakers but it often gave up and just processed it as Dolby surround which is hot garbage compared to Digital+ or DTS. Lacked the surround impact, channel separation, LFE punch, center dialog was all over the place and muddy as a bog. The AVR does a much better job decoding the audio than the tv in my completely subjective tests. Good luck!
Thank you for your comments!
If im using TV support Dolby Atmos but without extra speakers, just my TV speakers.
Still should enable the "None" option ?
Automatic: The default option, use it if you have your device connected to a TV and the TV connected to an AV receiver or if you have the device connected to an AV receiver and the receiver connected to the TV and want to get surround sound depending on what they support. If you want all the audio codecs to be detected automatically use this option.
None: If you don't want surround sound and want everything to be downmixed to stereo, suitable if you don't use home theater systems.
Passthrough: it usually sends the audio regardless of what the TV or AV receiver supports, you may not get audio with this option, use it if you know what you are doing.