Someone mentioned everyone's battery life will be different because everyone uses their phone differently and use different apps.
I have a 6s+ and I expect battery life to be better than what I'm getting. I log out of the Facebook app when I don't use it. I have turned on "reduce motion." For a couple days, I tried enabling Low Power Mode for two days straight but didn't make a huge difference. I've tried doing a fresh restore. Just can't figure it out. Maybe I'm expecting too much. I don't know.
Yeah looks like facebook maybe. Try and soft reset your phone, it might help. Here's my 6s plus currently.