dotnet / dotnet/maui

I1_Vertical list(Switch CollectionView Visibility)-After the app is deployed to the Mac Catalyst platform, a line will appear when you click the button.

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area-controls-collectionview csi-new platform/macos s/triaged s/verified t/bug
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Description

### Description

Note:
This problem only occurs when deploying the Mac Catalyst platform.

### Steps to Reproduce

1.Deploy https://devdiv.visualstudio.com/Pkgs/_git/VS.TestAssets.Xaml?path=/Assets/Projects/ManualMauiTests to Mac Catalyst.
2.Navigate to I1_Vertical list(Switch CollectionView Visibility).
3.Click the button.
4.View the page.

**Actual result:**
After clicking the button, a line will appear.
![Image](https://github.com/user-attachments/assets/1e1f3fdf-f4d2-4df6-8b94-a778753e1b37)

**Expected result:**
There will not be a line under the button like when deploying to Windows.
![Image](https://github.com/user-attachments/assets/8a7f3858-9ad8-448a-8f67-08f43bcb2310)

### Link to public reproduction project repository

https://devdiv.visualstudio.com/Pkgs/_git/VS.TestAssets.Xaml?path=/Assets/Projects/ManualMauiTests

### Version with bug

9.0.40-ci.main.25105.4

### Is this a regression from previous behavior?

Not a regression. It can also be reproduced on 9.0.30, 8.0.100, and 8.0.3.

### Affected platforms

macOS

Contributor guide

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Assessment

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