Change phone setting to high performance mode and see if it works.
If the phone is updating overnight pr automatically that may be the problem. Change the setting top make it ask for permission to update
I turned off auto update and will see if that helps
2 weeks ago
This sounds like "power optimization."
Settings -> Device care -> Battery -> Three dots -> Settings.
Turn off "Optimize settings"
Yes I have the same issue and none of the solutions that the moderators suggested worked for me. Were you able to find a fix?
I am also experiencing this issue, which is quite annoying having to change the setting repeatedly.
I also have no Bixby routine or power saving in place.