Not sure if this is the correct place to ask, but I am using GOS on my 9 Pro and getting very mediocre SOT, like 5hrs. And that is WITH the following modifications:
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Play Service has unrestricted battery for notifications
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Everything else, if applicable, has restricted battery and no background network.
I have 2 profiles but only 1 is active, the Owner one. The secondary i rarely use and I make sure to “end session”.
The main Owner profile runs default launcher, browser, some messaging apps, youtube, some google stuff, proton stuff. VPN is not on. Display is high res (lowest setting). Smooth display is off. All other stuff like wake on lift, tap to check, AOD…etc. are all OFF.
What is your SOT and what settings did you make?


so most apps have restricted battery with the exception being Google Play Service?
Pretty much. Apps I have unrestricted are gplay services, alarm, netgaurd, phone and messages. There are a few things in the optimized section (allow background activity) such as email, android auto, and my music player. Everything else is restricted.
My last full charge was Monday morning, some point on Wednesday I charged it from around 40% to 70%, and now on Friday afternoon its at 25%. This week has also been below average usage for me, due to vacation, with total screen time 4.5 hours.
There has definitely been a drop in battery life with Android 16, but we finally got small quick actions back, so I am happy.