ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Framework Namespace / FrameworkApplication Class / Initialized Property

Initialized Property (FrameworkApplication)
Gets true once the application shell has been loaded and a license has been acquired.
Syntax
public static bool Initialized {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also