IPadOS 16.2
I have an iPad Pro 2nd generation (old I know, in tablet years). After I updated to 16.2 my iPad acted like it had been hit by a brick. The battery ran down at a visible rate - about 60% in half an hour. It randomly rebooted. Sometimes strong black lines appeared (vertical in landscape mode) before shutting down. Blank spaces appeared in web pages. These problem subsided after a couple of days. Battery draining is still an issue but is not life-threatening :)
There is one minor persistent symptom that might throw light on underlying problems: I do the word puzzle Quordle every day but not any more on my iPad. When I access quordle.com, I get the message about privacy and setting cookies and when I dismiss this I’m left with a blank white screen. It works fine in Firefox and Chrome but never in Safari. Other family members who have updated to 16.2 on new and old iPads don’t have this problem.
As I said, an answer to this problem might help be decide if the iPad is on its way out or if it will recover. Thanks.
iPad Pro 12.9-inch, 2nd Gen, Wi-Fi