Volume slider has no effect

Plex Players
1

Server Version#: 1.30.0.6486
Player Version#: 1.59.1.3398-deb42972 Ubuntu 22.04 LTS (codename: jammy)

As title mentions, the volume slider doesn’t have any effect on the sound (even mute doesn’t work) and only the laptop main sound mixer has any effect.

2

Confirmed, same result here. Same build, running on Linux Mint 20.3.