I have seen some reply saying 5-10% battery drops every hour. I have apple watch series 6 bought 2 months ago, after this update my battery drains 2% every 3-4 mins. Before it used to charge within an hour and now it takes several hours to charge my watch and gets heated up. We bought this watch to use all the application, not to keep it on power reserve mode/ flight mode to save power. Apple should fix this soon. By the way, if you visit Apple store, they will do Diagonostic check of battery and say it’s fine in the end. Even apple service centre recognise this issue and have no solution.