On Arch Linux with 5.16 rc3 kernel (but also rc2) I can record audio with arecord -f cd -d 5 test.mp3 (ATM i don't have a DE). On Fedora Rawhide 20211130 (w/ Linux 5.16 rc3) the mic is visible with arecord -l but it's not listed by Gnome.
The HDMI audio works flawlessy.
On Arch Linux with 5.16 rc3 kernel (but also rc2) I can record audio with arecord -f cd -d 5 test.mp3 (ATM i don't have a DE).
On Fedora Rawhide 20211130 (w/ Linux 5.16 rc3) the mic is visible with arecord -l but it's not listed by Gnome.
The HDMI audio works flawlessy.