Volume/Mute Keys Do Not Work

I tried swapping to Pipewire (pipewire-pulseaudio-0.3.1) on Fedora 33, and I've discovered that the volume knob and mute button on my keyboard no longer work.

Expected: The volume knob should adjust the volume, and the mute button should mute system audio. Actual: Nothing happens when the volume knob or mute button are actuated.

I have a Das Keyboard 4 Professional, and both the volume knob and mute button work as expected with PulseAudio.

To install, I ran sudo dnf install pipewire-pulseaudio --allowerasing and rebooted.

I'm new to this, so if I can collect logs/data/etc, please let me know what you'd like and how to get it. I'm happy to share/test whatever might be helpful. I also realize there are a lot of layers at play here, so if I'm reporting this in the wrong place or to the wrong people, please let me know. Thank you!