No problems, XS Max seems a tad snappier...maybe??
Just switching camera modes, app switcher seems faster to me. (Not sure if thats a placebo effect?)
Battery did drop to 95% in about 10 min....BUT I did just install this - big upgrade from 13.7, so I'll let that pass right now and give it a day or 2. So far so good though. This app library, like many previous posts I don't quite understand the need for it personally, just big folders and a quicker access to apps is ok. I don't think I'll use it that much though.
iPad OS, no messed up various sized icons, this seems to be ok right now. I'll dive into this more later.
The latest watch OS on my AW 4, whew..after just a few minutes adding new faces, that battery went down to 96%. Again, I'm going from OS 6 to 7...so I hope this is just a new install, indexing deal.