Around 10 months ago my MacBook failed after a healthy 2 year run. At the time I lamented this fact, but was incredibly happy that it was my MacBook and not my iPad, as the latter offered me the use of drawing artwork and I would have to learn to manage my way around the limitations that iOS offered to do all the other stuff. A couple of weeks ago I upgraded to 13.6 and that was the beginning of the shit show. I got the battery drain bug, and no amount of resetting, restoring, contacting Apple, recovery mode (although not sure how long it lasted for).
Now my iPad is always plugged in as I don’t want to stress the battery in any way until this shit gets sorted out. What a shit storm iPadOS is turning out to be.