I know it's bad to reply to my own messages, but putting this out there for anyone else who stumbles across this forum.

I did a fresh install of Win11 trying to troubleshoot my issues. On a fresh...

Just set this up, working fine, but when I load up Uncharted 4, in the settings I shows stereo sound only. Will it still give me surround sound even with this setting locked down?

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psiberfunk are you sure you are only getting stereo?

Mine shows as Stereo in Windows, but play this test file and see if it's coming out in 5.1 on your speakers
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Sure no worries,

This first step might not be needed, but it's something I did to ensure a clean slate to work off:

Download DriverStoreExplorer

Releases . lostindark/DriverStoreExplorer ....

Great, thanks, finally sussed it!

Was so simple! All I did was run the ahk, when it kicked up a message saying "Current Scaling DPI is neither 100`% nor 300`%. The current value is %CurrentDPI%."...

This is great! I found it was slightly broken for me in Windows 11.

I had to change the number of times tab was pressed from 3 to 8 to get to the DPI settings.
I also changed the sleep time to...

Thanks to everyone that conributed to this guide. By the way my set up is, GTX3070 to an LG C9, eArc to my soundbar.

I was getting so frustrated that my speakers were not working correctly, yet...