static boolean isWMUtilsSupported( Window window ) {
		return hasCustomDecoration( window ) && isXWindowSystem() && isLoaded();
	}
Checks whether native library is loaded/available.
<p>
<b>Note</b>: It is required to invoke this method before invoking any other
             method of this class. Otherwise, the native library may not be loaded.
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatNativeLinuxLibrary.java