Check in your Device Care to see what's predominantly using the battery and as said let the phone learn your usage habits.
A phone battery does not hit optimum output until it's been charged and discharged a few times.
Are you using the Exynos or Snapdragon chipset varient ?
🌈 Stay Safe & Stay Alert. 🌈
Current Phone ~
Samsung Note 20 Ultra 5G SM-9820 _256Gb SnapDragon 865+
Samsung One Ui 2.5/ Android 10.
So many threads on this already. Well documented .
why buy a phone before reading reviews first.
Exynos battery and over heating on s20 range is being discussed all over the place. If your not happy with the battery life return it now while you still can. It won’t get much better unless you disable half the phones features.