Add page level style makes the label invisible on Windows

[suugbut]

Description

The following just works fine on both Windows and Android.

<CollectionView>
    <CollectionView.ItemsSource>
        <x:Array Type="{x:Type x:String}">
            <x:String>Item 1</x:String>
            <x:String>Item 2</x:String>
        </x:Array>
    </CollectionView.ItemsSource>
    <CollectionView.ItemTemplate>
        <DataTemplate x:DataType="{x:Type x:String}">
            <Grid Padding="10">
                <OnPlatform x:TypeArguments="View">
                    <On Platform="Android">
                        <Label Text="{Binding}" />
                    </On>
                    <On Platform="WinUI">
                        <Label Text="{Binding}" />
                    </On>
                </OnPlatform>
            </Grid>
        </DataTemplate>
    </CollectionView.ItemTemplate>
</CollectionView>

But adding page level style below,

<ContentPage.Resources>
    <Style TargetType="Label">
        <Setter Property="FontSize"
                Value="30" />
    </Style>
</ContentPage.Resources>

makes the Label invisible on Windows.

Steps to Reproduce

Replace ContentPage of the MainPage with my code above.

Link to public reproduction project repository

Not needed

Version with bug

10.0.20

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

Windows 10

Did you find any workaround?

Explicitly specify BackgroundColor of the Label on Windows section:

  <On Platform="WinUI">
       <Label Text="{Binding}" BackgroundColor="White" />
  </On>

Relevant log output

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• [regression/8.0.3] [Windows][CollectionView]Label Disappear when set Style in ContentPage.Resources #19209

[LogishaSelvarajSF4525]

This issue has been validated in Visual Studio 18.0.0 with MAUI versions (9.0.0, 9.0.120, 10.0.0-Preview1, 10.0.0-rc.2, 10.0.0, 10.0.10, 10.0.20 ). It can be reproducible on Windows platform.
Note: It does not reproduced in Android platform.

LabelStyleRepo.zip

Output Screenshot

In Windows	In Android