Feature flags with .NET and Azure App Configuration

Is there a way to manage Azure Feature Flags through a Rest API?

App azure configuration provides a mechanism for dynamic configuration [ConfigureRefresh] where configuration can be changed on a fly and the changed value is available to the server. How does this differs from the Feature Flag which seems like to be serving the same purpose , or if there is something extra which it provides us?. Thanks in advance.

why the big deal its a bit field