For several years now Samsung, Google, Oppo, Apple, and other companies have have been blocking non-certified 3rd party chargers from working with their phones, tablets, watches, and computers. This is because a large of those chargers do NOT follow safety laws and represent major fire risks as they are prone to fire-causing short-circuits, over-charging/overheating phones and watches to the point their batteries explode, etc.
And Apple stops signing older iOS versions less than a week after a new release, to protect you from the security flaws in the older iOS versions, so you can’t downgrade anyways. Google does the same with Android since 2021.
If you pay attention to their comments, their complaints about battery life end after the watch finishes doing post-upgrade background tasks, about 48 hours after upgrading.
There are also multiple very serious security flaws also patched with the new WatchOS, including some that allow hackers to get into your watch without you doing anything.
The app is iPhone only. I don’t see anything about activating the ANC via the watch.
PSA:
For those who just updated their Watches, be advised that for the next 48 hours or so after the update battery drain is worse than normal as various background tasks (normal post-update tasks) finish working; your battery life should return to normal after those 48 hours. This is normal, and occurs with Android watches, phones, and all tablets. It’s normal and not an OS or watch defect
Black Friday pricing updates. Happens every year.