Problem:
In Spotify I can only select the last group as a device or the separate speakers if there is no current existing group.
Reason:
This is really annoying, because I have to switch to the Sonos app every time I want to play on a custom Sonos group.
Solution:
Other companies are able to sync the individual devices and the groups to Spotify as a device. This results in the following device list in Spotify:
* Kitchen
* living Room
* Bedroom
* Custom group (Kitchen, living room)
Why is it so complicated to implement the same behaviour like for Google or Amazon devices?