Installed the Android 15 QPR 1 update on my Pixel 7a yesterday. The most important new feature for me is the 80% limit on recharging the phone. Information I’ve seen about phone battery life suggests that continually charging the phones up to 100% has a big impact on battery life. I think that problem is made worse by wireless charging that makes it simple to just recharge the phone whenever it is not in my pocket. For example, I have the Pixel Stand that really seems intended to be the resting space for my phone when I am at my desk, but before yesterday I had to be sure to not leave it on the stand once the battery reached 80% or so of charge. Now I (hopefully) no longer have to worry about that.