Adjusting system volume does not adjust the volume of audio

While having a video call, I found it to be too loud, so I adjusted my system volume and no adjustment happened. It was still too loud.

Previously, this worked as expected with PulseAudio. I could either scroll the mouse wheel on the volume icon, on the slider in the top-right menu, in the GNOME Settings under Sound's system audio slider, or adjust it with media keys. All of these methods to adjust the system audio no longer affect the output when using PipeWire.

This is on the Fedora 34 beta with yesterday's build of Silverblue.

pipewire-libs-0.3.22-5.fc34.x86_64
pipewire-0.3.22-5.fc34.x86_64
pipewire-pulseaudio-0.3.22-5.fc34.x86_64
pipewire-gstreamer-0.3.22-5.fc34.x86_64
pipewire0.2-libs-0.2.7-5.fc34.x86_64
pipewire-alsa-0.3.22-5.fc34.x86_64
pipewire-jack-audio-connection-kit-0.3.22-5.fc34.x86_64
pipewire-utils-0.3.22-5.fc34.x86_64

Laptop: Lenovo T460s

Audio chip: Intel Corporation Sunrise Point-LP HD Audio (rev 21)

DAC: SAVITECH Corp. FiiO USB DAC K1

Headphones: Sony WH-1000XM3