I have apps set to deep sleep as well as some in the normal sleep function that I don't need to run or receive notifications from automatically.
I also close down an app in my multi function section if I've finished using it.
A Samsung Experience Store or Samsung Service Centre can take a look.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help.
Are you on one ui 2.5? If so i keep hearing from people that there are still many bugs and battery drain issues, your best choice is to update to android 11 when it comes out and hope everything is fixed.
Personally I am still on august 2020 update on one ui 2.1 to avoid all this problems
I own a Samsung Galaxy S20 and my phone battery was great until the new update came and ruined everything. I remember it used to last for a full day and sometimes more. With the new update, they completely changed the settings for power-saving which was not needed. Now we only have one option and that option doesn't even save battery life. Nowadays I have to make sure to pack my power bank where ever I go because my phone might die after a few hours. I have friends that are experiencing the same problem straight after the new update.
Samsung definitely need to solve this issue it definitely has nothing to do with putting apps on sleep mode or turning off your Wifi.