Answer by Liyun Zhang - MSFT for How to resize image inside in .NET MAUI

It seems there is no a such Button control can achieve the effect you want. So you can use a control to contain the image and the text. And then use the TapGestureRecognizer to deal with the clicked event. Such as:

<Frame HeightRequest="150" WidthRequest="150" BorderColor="Red"           Margin="20" ><VerticalStackLayout Margin="-10"><Image Source="image.png"                    WidthRequest="100"                    HeightRequest="100"                    Margin="-10"/><Label Margin="0" Text="this is text"                    WidthRequest="100"                   HeightRequest="50"                    HorizontalTextAlignment="Center"                   VerticalTextAlignment="Center"/></VerticalStackLayout><Frame.GestureRecognizers><TapGestureRecognizer Tapped="TapGestureRecognizer_Tapped"/></Frame.GestureRecognizers></Frame>

The Margin property can be used to adjust the fine position of the view.

And in the Page.cs:

    private void TapGestureRecognizer_Tapped(object sender, TappedEventArgs e)    {        // you can do the work you want when the button clicked    }

The result picture:

In addition, you can refer to this case about how to change xamarin frame border thickness to set the frame's border width.