PMTiles are an exciting cloud native geospatial data type that can store vector and raster tiles in a single file archive hosted in blob storage. They can be fetched with range headers, cached with etags, and displayed on a map for cartographic purposes. It would be very interesting for esri to release a PMTile layer for the arcgis sdk for javascript similar to the GeoJSONLayer.
https://github.com/protomaps/PMTiles
https://docs.protomaps.com/
