What are the supported drones in ArcGIS Flight?

Answer

For a list of drones supported by the ArcGIS Flight app, see the following Esri Community blog post: ArcGIS Flight - Supported Aircraft and Cameras

Note: 
Site Scan for ArcGIS, ArcGIS Drone2Map, and ArcGIS Reality for ArcGIS Pro provide processing of any georeferenced drone image. If your drone is not supported by the Flight app, you may still use the manufacturer's application to capture images for processing in the aforementioned ArcGIS Reality products.