Xbox one X App audio 5.1 surround sound

I have a 5.1 dolby digital receiver/dvd player hooked to xbox one with an optical cable and to the tv with hdmi Xbox setting is set to bitstream out dolby digital and I get full 5.1 on games and blue ray works perfectly and menu sounds but any music or
video app or a dvd that has 5.1 audio won't work the music and video apps only give 2.1 and the dvd with 5.1 sounds so muffled I can't hear I have tried everything and all I can get is this or fake surround and I don't want fake surround if all the apps are
in 2.1 why wouldn't the Xbox be smart enough to mix the sound through all the channels of audio if the program only does 2.1

I have a Denton AVR 4306 and the best audio has been with DTS Surround and Surround Sound Beta enabled, no audio issues at all. I seem to remember 5.1 uncompressed not sounding very good,

So my optical from xbox to receiver and selecting DTS digital is going to give me 5.1 surround?

It def sounds really good when watching netflix.. but ive always thought uncompressed 5.1 under the hdmi audio setting on the xbox would give me better surround sound?

First Question:

I own a Razer Chimaera 5.1 and I am very happy with it, it's both has quality audio and is comfortable to wear.The voice can get muzzled if the game audio is set too high, which you have to correct with the ingame audio settings as the headset only has buttons
for voice and general volume.



Second Question:

With an actual surround sound set 5.1/7.1 are the amount of speakers+subwoofer which it consists of. With surround sound headsets 5.1/7.1 are percieved sound directions+subwoofer. I would recommend using only 5.1 as that is how audio of Xbox 360 games are
designed to use.

I also have the same issue. Regardless of setting the TV audio to Stereo or Surround Sound, I only get 2.1 audio. I only got the xbox one and tuner a few days ago; did 5.1 surround sound work ever w/ the Hauppauge tuner earlier on before a recent system
update? Or has it never worked?