Headphones Volume Buttons Don't Sync With Computer

As the title says, I have a pair of Bluetooth headphones, and when connecting them to my laptop they work just fine. My issue is with the volume buttons on the headphones, which are able to adjust the volume of the audio but do not adjust the volume slider on the laptop, which means that the volume they adjust is separate from the laptop’s volume.

How can I fix this?

For anyone who needs this, here’s my current setup:

  • Bose QC35’s with Bluetooth enabled
  • PulseAudio sound
  • “High Fidelity Playback (A2DP Sink)” option in Manjaro’s sound settings

Any suggestions are appreciated and I’m happy to provide more info if needed.