tricky thing is... there are a million moving parts that determine your own battery performance. Everything from the apps you have loaded, your signal strengths, to how much you drive around town.
I mean, for me, personally, I can see anywhere from over 5 hours of SOT over 36 or more hours to 3:30 or so over just 18.... It all depends on what I am doing.
That's why, other than trying to find rogue apps, I don't really give any battery 'tips' other than 'charge early and charge often'. Get yourself a nice USB-C PD battery pack for travel and have a charger at home and in your office, etc.... Let your phone be smart, don't turn stuff off. I cringe when I see people talk about turning this service off or that feature.