Hey, little update.
It is just getting weirder.
Windows continues to have no issues at all with the audio.
I tried a manjaro xfce live usb today and a ubuntu lts live usb today, both only had the dummy output available. Now i boot back into manjaro, and my audio works again. I ran no commands whatsoever.
I can’t loose the feeling it might have to do something with grub, as my second linux sometimes when updating also updates grub and then changes the config. I believe this might have caused the issue in the first place.
Any ideas what to do now? I will leave my machine on standby for now in case there’s some sort of config to export here maybe…