I am responding to you on an LG V30 that I haven’t been able to part with because of the things you mentioned.
The battery life sucks and sometimes the fingerprint reader on the back doesn’t work right but I can’t bring myself to buy something new that doesn’t have the features I want. It just feels like I’d be downgrading.
This was gonna be my suggestion as well.
I also go in and prune the library every so often to get rid of my sister in law’s trashy reality TV shows.