[MacOS] Misaligned items before resizing the window on MacOS

[Ayemeri]

Description

Items are misaligned before resizing the window but after resizing the window, there will be huge gaps between the items on MacOS

Affected test cases:
All Manual Maui Test cases

Notes:

1. Here are some examples of the affected test cases where they are misaligned

Misaligned.Items.mov

Picker.mov

Add.Clear.mov

Steps to Reproduce

1. Deploy ManualMaui to MacCatalyst/iOS
2. On the Categories Page, open any category then go back to categories page
3. Once back on the Categories Page resize the window and notice that it will have a huge gap between items

Actual Behavior:
There will be misalignment on the items and a huge spaces between items after resizing

gap.on.categories.page.1.mov

Expected Behavior:
There should not be any misalignment and changes when resizing the window

Expected.Behavior.mov

Link to public reproduction project repository

https://github.com/dotnet/maui/tree/main/src/Controls/tests/ManualTests

Version with bug

10.0.60-ci.inflight.26173.4

Is this a regression from previous behavior?

Yes, this is a regression on 10.0.60-ci.inflight.26173.4, this does not reproduce on 10.0.50-ci.inflight.26165.6 and 10.0.50

Affected platforms

MacCatalyst and iOS

[HarishKumarSF4517]

This issue has been validated in Visual Studio Code 1.113.0 with .NET MAUI versions 10.0.50, 10.0.50-ci.inflight.26165.6 & 10.0.60-ci.inflight.26173.4. It was reproducible from 10.0.60-ci.inflight.26173.4 on iOS and Mac platform. I have attached Video for reference:

Note: This occurs both in CV1 and CV2

MAC:

10.0.50-ci.inflight.26165.6(Not reproduced)	10.0.60-ci.inflight.26173.4(Reproduced)
Screen.Recording.2026-03-25.at.3.51.45.PM.mov	Screen.Recording.2026-03-25.at.3.48.18.PM.mov

iOS:

10.0.50-ci.inflight.26165.6(Not reproduced)	10.0.60-ci.inflight.26173.4(Reproduced)
Screen.Recording.2026-03-25.at.3.54.29.PM.mov	Screen.Recording.2026-03-25.at.3.57.13.PM.mov

[sheiksyedm]

This issue does not occur on the main branch; it occurs only on the inflight branches. Regression PR : #33908