GPS Run with Music uses 20% battery/hour

I also play music most of the time when I play sports. I can only confirm that the music consumes a lot of battery.

I can confirm that music consumes battery.
In my case on Fenix 7X one hour run with GPS set to AUTO and music played by watch consumes about 5% battery.

No, it has been a constat for me across all firmware vesions, all sistems + multiband with always on display (during workout) uses some 5%/h, when added music it uses 9-10%/h.

You will get around 7 hours with Music and Multiband, extends to 9 hours with All system (no mulitband). Has never been better for me (in this case even my AppleWatch Ultra lasts a bit longer :D) 

around 10% an hour was what i expected but now it's 20% an hour. any idea? could it be spotify settings?

There are no settings. You can try deleting the app and install it again. 

Refreshing this. Am I the only one that uses 20% and hour when running with GPS (all systems) plus spotify music? started with 80%, ran for about 90 minutes and at 50%.  Thats 5 hours of GPS plus music. It was better a few SW versions ago.

What watchface are you using?   Is it a Garmin one? Also are you running with map enabled?   That uses more battery also

garmin watch face, no map, just run with gps, no ext sensors at all

It looks wrong, for me on Fenix 7X, music, external HR sensor, GPS set to auto, 40 minutes run get 3 - 4% of battery.

Maybe you have your screen set to always on?