Me too , Ive worked my way through all the 13. upgrades and battery drain is awful and App's are glitchy, battery gets hot, I have an original Iwatch and forget about that , it is now permanently in airplane mode, when it is not in airplane mode it drains in an hour from 100% to 0.
I took it off airplane mode today just to see if things had improved after two upgrades Im at 13.2.3, but my Iphone 7 plus then drained even faster from 95% to 40% in that hour, so something really screwed up going on here. Cant we just go back to 12 I mean why fix what isn't broken, it seems to me that Apple has taken a path like samsung in getting to the new release of yet another new phone is priority in the race to have the newest flashy thing. I changed from android originally to iphone because it was simple and realiable and just worked, but everything after 7 seems to have introduced a raft of issues.
Maybe I just don't like change, but actually I just like quality gear that works.
I live in hope that we get that back.
cheers