Question Do audio controls work for bluetooth speakers on PC?

Oct 9, 2020
Hi, I have a Philips BT40BK portable speaker which is connected to my laptop, up and working. But I have small issue.

Whenever it's connected to my phone, and I press the volume up or down button, it increases or decreases the volume on the phone itself (the phone gives a notification).

But in case of my laptop, it doesn't reduce the volume of my laptop speakers but instead the Phillips portable speaker volume decreases. Is this a normal behaviour?

This doesn't cause any problem, I can control the volume, just it reduces on the speaker itself.

Things I tried:
mpris-proxy doesn't help in my case.
Modprobing uinput also doesn't help.

OS: Arch Linux x86-64
Kernel: Linux version 5.8.12-xanmod1-1 (makepkg@archlinux) (gcc (GCC) 10.2.0, GNU ld (GNU Binutils) 2.35) #1 SMP PREEMPT Wed, 30 Sep 2020 14:19:49 +0000
Pulseaudio: pulseaudio 13.99.2-7-g610179
Pulseaudio-bluetooth installed.