Setting PreferredStatusBarUpdateAnimation does not affect Status Bar Hiding Animation

[dustin-wojciechowski]

Description

We came across this when addressing #19970. The values previously weren't being assigned, but now we can see that they are in the debugger, even if there is no visual change.

See Current Behavior (Once PR #20069 lands) and expected behavior in this comment

@kubaflo discovered here that this also is not occuring in a blank XCode project with suggests that problem maybe with the iOS platform rather than MAUI itself.

Steps to Reproduce

1. Compile the Maui.Controls.Sample project and run it on an ios device (preferrably iPhone)
2. Go to Platform Specifics, and then search for "Hide Status Bar"
3. Toggle the status appearance (default, on, off) and see that the status bar blinks on and off visually.
4. Select the toggler to iterate through the different animations (no animation, slide, fade). Notice that no animation is played.

Link to public reproduction project repository

https://github.com/dotnet/maui

Version with bug

8.0.20 SR4

Is this a regression from previous behavior?

No, this is something new

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS 17.2, 16, 15

Did you find any workaround?

No response

Relevant log output

No response