Left my fairly new 8 on the dresser from Sunday 1400 until today at 1700. In that time its battery dropped by 17% or
0.63%/hr. Wifi and my (intermittent among LTE, 5g and '5g+') Tmo left on, but no push traffic to stay awake for. No esim.
That's nowhere near as good as my 3a or 5a, which seem to easily last a couple weeks in the same conditions, but no more than a mosquito bite considering what others go through.