After thinking about it more, maybe I am wrong and there is a use case for these animations:
Small children like to look at moving things.
So it depends on the target audience. Toys or educational Apps are different from the business / financial context implied in your demo.
Re:Show HN: iOS Login Page
by Normal_gaussian on Sunday March 22, 2020 @05:10PM
(#22658685)
Don't underestimate the number of successful adults who treat their finances / business as a toy
There is a trend of infantilization within modern culture. This has been underway for some time now.
You are right, I found more on this:
https://www.uta.edu/huma/agger/fastcapitalism/10_1/bernardin...
I think there is a reason why it's dark when the stage set of a theatre is being changed between scenes, but with user interfaces somehow any rearrangement must be a distracting visual gimmick these days.
Edit: Seriously, why do you need a hard change to a blue background only to then move a white cloud up across nearly the complete height of the screen?
https://github.com/realpaliy/ios-login/raw/master/art/finalA...