The March update seem to have an effect on battery life. I've bee having 6.5 hours of screen on time before the March update now I'm back to 4-5hours
I feel like I made a mistake in updating to the s21 ultra 😔
I use tap to show the AOD, and I disabled digital wellness cos they say it has an effect as well.
Still, I shouldn't limit my phone cos it's supposed to be the best there is but it is bested by older phones even