I have a couple of very minor gripes with iOS 15.
One of the shortcuts I created that takes webpage URL and saves it to a Dropbox file needed to be re-created with a new iOS 15 Dropbox action, otherwise it would pop-up a message asking for permissions to access Dropbox every time (and the “allow always” option didn’t work for some reason)
The new Focus feature is great and all, but it requires both a little thinking about what you want to use each of the focuses for, and then go through the busywork of setting it all up. Probably overkill for most users where Do Not Disturb will do. Unfortunately, the sleep focus requires you to have setup Sleep in Health, which I haven’t done as it turns on other things I’m not really interested at this time, so I’m still going to use the DND focus as my “sleep” focus. Seems to work just fine.