maui-linux/Xamarin.Forms.Controls/GalleryPages/TitleView.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="Xamarin.Forms.Controls.GalleryPages.TitleView">

	<NavigationPage.TitleView>
		<StackLayout>
			<Label Text="This is my TitleView" />
			<Label Text="I can be a subtitle" />
		</StackLayout>
	</NavigationPage.TitleView>

	<StackLayout>
		<Label Text="Welcome to Xamarin.Forms!"
                VerticalOptions="CenterAndExpand" 
                HorizontalOptions="CenterAndExpand" />
	</StackLayout>

</ContentPage>