TaskScheduler.UnobservedTaskException not firing because of a switch case

Question

Using the .Net Framework 4.8 and VS 2022, in the following program, UnobservedTaskException is raised correctly

    internal class Program
    {
        static void Main(string[] args)
        {
            // Listen to UnobservedTaskException
            TaskScheduler.UnobservedTaskException += TaskScheduler_UnobservedTaskException;

            // Launch a task that will throw an exception
            Task.Run(() =>
            {
                throw new ArgumentException("boom");
            });

            // Run the GC periodically so that UnobservedTaskException gets triggered
            Task.Run(async () =>
            {
                while (true)
                {
                    await System.Threading.Tasks.Task.Delay(500);
                    GC.Collect();
                    GC.WaitForPendingFinalizers();
                }
            });

            Console.ReadLine();
        }

        private static void TaskScheduler_UnobservedTaskException(object sender, UnobservedTaskExceptionEventArgs e)
        {
            Console.WriteLine(e.Exception.Message);
        }
    }

However in this slightly different one that should behave exactly the same (the Console.Readline() is now wrapped by a switch statement), the UnobservedTaskException is not triggered. What am I missing ?

    internal class Program
    {
        static void Main(string[] args)
        {
            // Listen to UnobservedTaskException
            TaskScheduler.UnobservedTaskException += TaskScheduler_UnobservedTaskException;

            // Launch a task that will throw an exception
            Task.Run(() =>
            {
                throw new ArgumentException("boom");
            });

            // Run the GC periodically so that UnobservedTaskException gets triggered
            Task.Run(async () =>
            {
                while (true)
                {
                    await System.Threading.Tasks.Task.Delay(500);
                    GC.Collect();
                    GC.WaitForPendingFinalizers();
                }
            });

            string dummy = "whatever";
            switch (dummy)
            {
                default:
                    Console.ReadLine();
                    break;
            }
        }

        private static void TaskScheduler_UnobservedTaskException(object sender, UnobservedTaskExceptionEventArgs e)
        {
            Console.WriteLine(e.Exception.Message);
        }
    }