[W10] Default output peripheral doesn't match OS one and does not work

[Porkepix]

Description

List of output peripherals included default audio card, my screen (with no speakers, but it does have a jack plug), and virtual peripherals from Steam (this include a microphone… in the outputs list?!)
And the default one (can't tell which one is it as default is a 5th entry) isn't the right one, the audio card with internal speaker/jack plug, therefore forcing user to change it (and change it everytime when settings doesn't stick).

Steps to reproduce

Not sure I can have STRs, it's just running Mumble on that computer.

Mumble version

1.5.634

Mumble component

Client

OS

Windows

Reproducible?

Yes

Additional information

No response

Relevant log output

No response

Screenshots

No response

[Porkepix]

A little update here, after the numerous install/uninstall I did for another issue.
On a fresh setup, when gong through the audio assistant, with default peripheral for both input and output, the assistant receive audio input (bars move), but I have no audio loopback. Once I change the output to my headset in the list, the input stops working: no more bars moving, and I also have to change the input device manually to my headset for the input to work.