There should be more samples in VB.Net for the ArcGIS Pro SDK. For cases where a programmer is redoing a vb.Net arcobjects add-in to use in Pro and wants to keep it in VB.Net not C#. Even the simple step of FeatureLayer.GetFeatureClass() requires using QueuedTask.Run and there is nothing available that I could find on syntax of coding that in VB.Net.