Access to files stored in [NSFileManager containerURLForSecurityApplicationGroupIdentifier] for debugging

Question

I have an application with the following code:

NSURL *containerURL = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:@"group.com.myCo.myApp"];
[containerURL URLByAppendingPathComponent:@"Myfile"]];

Reading and writing from Myfileworks, but I would like to have access to the file directly on my phone for debugging and testing purposes.

This is not in the App container (Window> Devices → Download container), is it really not available for developers who have a device connected to the computer? I feel something is missing here?