Where credit is due, I think batteries have improved. I've noticed that the battery health no longer starts dropping fast after a year and a half (which was like a standard for me). When I got my phone, the battery health was already at 98%. I don't know why and I didn't really care as I got thru the days without needing to charge extra. After 2.5 years, the health is at 95% and I'm still not seeing noticeable degradation. Then again, I use battery health management system (smart charging and 80% charge whenever I didn't need to last longer) which wasn't a thing on older phones, maybe that's the reason