phone overheating from basic normal usage and battery draining way too fast
hello i have this phone since now 2 years, got it as a refurb, and now i'm experiencing (since a few months actually) battery draining pretty fast (like when i check app usage on the battery settings, it only adds up to half of what's truly been drained, and i can't find any hidden battery guzzlers) and overheating to like 60c on the top half from basic usage like discord internet small graphically light games etc and it's getting concerning, would the overheating be caused by the out-of-shape battery? i have an appointment next week to change it out but i wonder if it'll fix the overheating bc it's mildly concerning; it's still on one ui 6 because updating to one ui 7 scares me aha (is it even worth it?); i've considered changing it but otherwise it works just fine and it's just a beautiful phone (it's phantom silver) with amazing features (however i'm not a fan of how huge it is, i wish it wasn't standard to have only telephoto lenses on huge slabs)