We're aware that for some devices a restart is required when swiching audio devices while playing back music.
We're not able to provide an exact timeline for a fix, but we really appreciate you letting us know about this. We're always working to make Spotify a better experience. We'd recommend keeping an eye out for updates to the app.
Let us know if you have further questions.
Have a nice day.
Help others find this answer and click "Accept as Solution".
If you appreciate my answer, maybe give me a Like.