Thinking of upgrading to a 7, probably Pro when Black Friday deals hit. My 6Pro battery life sucks shit, I've replaced the battery with an OEM one and not much better. I use my phone throughout the day, but most of it is streaming with the screen off. Always needs to be charged. Normal amounts of random app use and browsing.
Mine's a year old or so and the battery life is definitely all day. Can't really stretch it to two days unless I were to plan ahead and use battery saver mode and stuff.
Generally light usage though -- rarely use YouTube on the phone, or anything else with videos because I don't have much data. Reels and stuff on wifi, but that's not for extended watching like YT would be. No Spotify either.