[iOS&Mac] Shell SearchHandler Query not shown in search bar on initial load

[SubhikshaSf4851]

Description

When the Query property is set during the initial load, the value is not reflected or updated in the UI on iOS and Mac Catalyst platforms. However, this behavior works as expected on Android and Windows.

Steps to Reproduce

// In your ContentPage constructor or OnAppearing
var searchHandler = new SearchHandler
{
    Placeholder = "Search items...",
    Query = "Initial query",
};
Shell.SetSearchHandler(this, searchHandler);

• Attach the above sample on MainPage.Xaml.cs
• Run on iOS or MacCatalyst.

Expected Behavior : The search bar displays "Initial query" on first load.
Actual Behavior : The search bar holds placeholder text.

Actual Behavior	Expected Behavior

Link to public reproduction project repository

No response

Version with bug

10.0.0

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

iOS, macOS

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

[Ahamed-Ali]

This issue has been validated in Visual Studio 1.116.0 with MAUI versions (10.0.0, 10.0.20 and 10.0.51). It was reproducible on iOS and Mac Platform.