The Photos app has changed. After spending some time with it, I don’t see it as more complicated. I find the new utility section pretty helpful.

You can fully customize the Control Center. If you want BT devices on the first page, put them there. Also, you can do a longer swipe to get several pages deep, instead of a swipe a tap.

I’ve noticed some bugs, but I assume those will be worked out in time, just like with any major release.