Whitelist Spotify so it doesn't close automatically when you pause the music

[MNC1]

Plan

Premium

Country

France

Device

Samsung Galaxy 9

Operating System

Android Oreo

My Question or Issue

Hi, is there a way to whitelist Spotify so it doesn't close automatically a moment after i pause the music. I actually searched and found that you have to add Spotify to the "Unmonitored apps" in "Device maintenance" (settings) but i did that and it still shuts down when i press "Optimize now". I also installed Tasker.apk but couldn't find how to disable Spotify auto closing. I'm asking this because my Spotify widget on the homescreen that i use a lot only works when the little notification (the circle with lines) is on the notification screen. Any workaround ? Thanks !!

Samsung galaxy S9 / Android Oreo