Yesterday the battery on my iPad Pro (M4) went down quickly, from 100% - 12%. In my normal usage it is rare to get below 40%. So I went into Battery in the Settings app and Safari was the major culprit. Then I noticed that the tab which was visible had a lot of animations and autoplay videos. Most of the time I have the iPad in Windowed Apps mode and a good part of the day Safari was in the background, but I guess part of that webpage was visible on the screen. I’m a little surprised that 1 cr@ppy webpage would eat up so much of my battery. I thought iPadOS would be smarter about it. The lesson learned is if you’re on a junky webpage with autoplay videos and animations, close it as soon as possible.
It’s also sad how many websites destroy their user experience with this garbage.