Why is Spotify changing the volume setting on my iPhone when music is playing on my desktop (PC)?

[Marcus999]

Repro step:

- PC Client @ 100% volume

- iOS Client @50% volume, playing music

- Stop playing music on iOS and background the app

- On the PC, change output device to this computer

- On the PC, press Play

Result:

- The volume setting of the iPhone goes to 100% eventhough the iPhone app is not playing music.

Expected behavior:

- The PC client does not change the volume of my phone, at least when music is not playing on my phoine, or even better, not at all.

PS: Could not find a place to report bugs, so posting on the forum.