For me, my phone can last for 2 days after full charge. Consider a light user? Mostly on FB, Insta, WA, Bixby, sPay and browsing.
Hardly play games, only when Im bored(PUBG). Setting wise, I turned off my A.O.D and some other minor things that I cant remember.  got those methods from Youtube tho..
But all in all I think depends how the user uses it.

Well like i said, Im pretty much a light user thats why my phone can last for 2 days. Even if I constantly use my phone over weekends(when Im more free compared to weekdays), my batt still can last bout 20hours atleast. Well can last me till my bed time from I unplug my phone in the morning.
So it really depends on how user uses the phone.

Here u go, last charge was Wed Morning and now is Fri 12.39am.