The UI reaction feels more delayed now. If i'm in the middle of a call and want to go private, or some how got connected to the slow network, and i want to switch to the other one.
I feel like I used to be able to do it with 2 or 3 simple clicks. Now i cant remember if i need to click once, or click and hold, and by then the animation changed and now I tapped again and its doing something i did not expect.
For me personally, I used to be a wiz at navigating this phone on older OS versions - and now i feel like a klutz and it doesn't do the thing I expected anymore.