The map doesn't instantly update. When dynamic styling is enabled all the feature state map tiles will have an expires
header that is 30 seconds. When this header is set the browser will automatically re-request new feature state tiles when a tile expires. This is how dynamic updates are handled at scale in the Azure Maps indoor maps platform.
If you need to be able to see update data on the map in near real-time, a different update architecture should be considered. Such as using Singal-R. For example: https://github.com/davetheunissen/Global-Azure-Bootcamp-2019-Workshop