Ready-to-use deep learning models are available via ArcGIS Living Atlas. These models have been trained on data from a variety of geographies, you no longer have to invest time and energy into manually extracting features or training your own deep learning model. As new imagery comes in, you can readily extract features and produce layers for mapping, visualization and analysis.
New deep learning models have been recently added. For more information about these, see Pre-trained deep learning models update (July 2021).