Surround Sound option not available

Hey guys, I am running Bazzite on a machine and have the audio routed via the graphics cards HDMI to an LG C2 TV.

Unfortunately the surround sound option is not available in the KDE sound menu.
Only stereo is available.

Here is the output from the alsa-info.sh command: http://alsa-project.org/db/?f=0a497cfe923396628fc3b85e88593975bb77121b

Can anybody help?