I hear it every time, but most of my phones barely survive a full day’s use. (I’ve used flagships from pretty much every brand. The only ones that have adequate battery life are brands like Oppo and Vivo, but I don’t like them for different reasons.) If they weren’t obsessed about making phones as slim as possible, it should be possible to put in even more battery life, so that people like me (and I’m probably not a minority, I hear people complain about this a lot) could have 30% battery left at the end of a normal day, and could be confident about using their phone more on more demanding days (e.g. need to shoot videos, or long video calls).