I found this in Fedora Devel lists :
I made a try. All goes fine except that plasma-pa and bluedevil have been removed
because of pulseaudio dependency.
Rebuild the packages with something like : (# if fedora > 33 Requires pipewire-libs ) help me for a use of plasma-pa mixer.
Is there a solution for this issue in next rawhide builds.
FEDORA-2021-29d7d49890 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2021-29d7d49890
FEDORA-2021-29d7d49890 has been pushed to the Fedora 33 stable repository.
If problem still persists, please make note of it in this bug report.