Hey all, I had this same issue with the non-silverblue instance and since I just got a new drive I figure might as well make the leap and try out silverblue. But alas same issue as in this audio bug on F35
In this case I am unclear how to resolve the issue. Wireplumber shows these failed issues. Further below we see the slice cut
● wireplumber.service - Multimedia Service Session Manager
Loaded: loaded (/usr/lib/systemd/user/wireplumber.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2022-04-07 08:54:58 EDT; 15min ago
Main PID: 2003 (wireplumber)
Tasks: 4 (limit: 27804)
Memory: 4.2M
CPU: 185ms
CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/wireplumber.service
└─2003 /usr/bin/wireplumber
Apr 07 08:54:58 fedora systemd[1752]: Started Multimedia Service Session Manager.
Apr 07 08:54:59 fedora wireplumber[2003]: Failed to set scheduler settings: Operation not permitted
Apr 07 08:54:59 fedora wireplumber[2003]: SPA handle 'api.alsa.acp.device' could not be loaded; is it installed?
Apr 07 08:54:59 fedora wireplumber[2003]: Failed to create 'api.alsa.acp.device' device
The slice cut
│ └─6211 /usr/libexec/ibus-engine-simple
├─pipewire-pulse.service
│ └─2004 /usr/bin/pipewire-pulse
├─pipewire.service
│ └─2002 /usr/bin/pipewire
├─wireplumber.service
│ └─2003 /usr/bin/wireplumber
├─xdg-desktop-portal.service
All three are running which seems to result in me not having any audio devices internally, I can add devices like bluetooth externally without issue.