The apk on the app store is only directly compatible with Android tv and not mobile. You can download separately but using on mobile isn't the most fluid.
https://www.reddit.com/r/TiviMate/comments/awxj1r/unlocking_premium_on_fire_tv_devices/
Xmanager can make an ad free modded apk of the spotify client. Keep your playlists.
https://github.com/Team-xManager/xManager
The apk on the app store is only directly compatible with Android tv and not mobile. You can download separately but using on mobile isn't the most fluid.
https://www.reddit.com/r/TiviMate/comments/awxj1r/unlocking_premium_on_fire_tv_devices/