Since the firmware update to 10.44 and iOS update to 16.2 on my iPhone 12 Pro, my watch’s battery drains much faster. Normally I would get 10-11 days until battery percentage was 10%, but now it lasted only 7 days. And always on and PulseOx are off. When battery is 100% watch indicates a battery life of 16 days, which is what it is since I started using the watch in August this year.