Hi,
I can't control the music volume from the watch when connected to the Samsung Galaxy Buds 2 Pro headphones. It seems to default on max volume and the volume controls are disabled via the Spotify app.
I know this is device dependent but these are top-end brand name headphones and they used to work on my previous Garmin Forerunner 245 watch.
Hoping this is fixed in a firmware update soon.
Thanks