BindableHelper.cs

public static class BindableHelper
{
    private const string KnownPropertyPattern = "Property";

    public static BindableProperty CreateProperty<T>(
        T? defaultValue = default,
        BindingMode mode = BindingMode.TwoWay,
        BindableProperty.BindingPropertyChangedDelegate? propertyChanged = null,
        [CallerMemberName] string? propertyName = null)
    {
        propertyName = RemoveLastOccurrence(propertyName!, KnownPropertyPattern);
        return BindableProperty.Create(
            propertyName,
            typeof(T),
            typeof(BindableObject),
            defaultValue,
            mode,
            propertyChanged: propertyChanged);
    }


    private static string RemoveLastOccurrence(string source, string toFind)
    {
        var index = source.LastIndexOf(toFind);
        return index == -1 ? source : source.Substring(0, index);
    }
}