One thing they've changed with iOS 27 is the headers.

One thing they've changed with iOS 27 is the headers. And I don't know why they've done this. They used to have a beautiful grade into the top. As you can see here, but now it's a solid kind of glass effect. If I go into Siri here and scroll up, you can see what's going on is it just pops in. It used to have a nice feathered fall off and it's not just in the system. If you go to Tapcal for example at the top here, all apps are behaving the same. Instead of having that lovely little feather, it's a solid bar. Hopefully this is something that's playing with then it's not something that I'll actually stick because it was way nicer before, but that is a little thing I've noticed that is bugging me.