I'm wondering the same thing! I am going to be infuriated if my expensive watch continues to be nearly unusable after this update. I can't periodically stop my day to charge my dying watch, and I'm more than a little p&sed off that I spent so much money buying the d&mn thing.
No I've turned off notifications and apps and everything I could and everything that was suggested when I Googled the issue. I got the watch for Xmas and it worked perfectly for 3 months. Because it doesn't get alot of action, the battery would easily last 2 days before needing a charge. And even then it would only be between 50 and 60 battery life left. It updated and it literally will die within 2 hours. If I put it on airplane mode it will almost last 3 hours. It charges super slow now also. I searched and it looks like this happened last year with one of their watch updates too. Its kind of alot of money to spend to only get 3 months of service out of it
Just as a data point, my watch is running fine. LTE
Galaxy S21 Ultra 512g(VZW), Galaxy Book (original, VZW), Tab S4, Galaxy Watch3 (VZW)
My Active 2 LTE was purchased only 60 days ago, and I'm already having trouble holding a charge for more than 4-6 hours. My daily usage is minimal, i.e. time, steps, and a couple of texts.
These batteries must be poorly designed - or very OLD!