I think the nobara updater works with yum. You should be able to access to the yum update history and find out what audio related packages got installed in the update and downgrade those. Anything with pipewire or alsa in the package name for example
Imagine having to work with a snake like Lindner and a wet paper towel like Scholz on a daily basis. I don’t agree with everything Habeck does but just for that fact alone he’s earned my respect. I would have fucking resigned like 3 months in.