C# Is action.BeginInvoke(action.EndInvoke,null) a good idea?

Question

If I want to do a \"fire and forget\" of some code, but still want to ensure that my memory is cleaned up (per Why does asynchronous delegate method require calling EndInvoke?),

Answer 1

Nowdays it could be done like

BeginInvoke((Action)(async () =>
{
    // Show child form
    var f = new MyForm();
    f.ShowDialog();
    // Update parent/current
    await UpdateData();
}));