Compile error - what is the proper directory structure?

[molecule]

I've tried the following directory arrangements:

1. ICM20948 folder and 20948_Working folder both inside Arduino --> libraries folder.
2. ICM20948 folder and 20948_Working folder both inside Arduino-->libraries -->ICM20948_DMP_Arduino

Both have the same error, captured below.
What is the proper directory structure?

Arduino: 1.8.13 (Windows Store 1.8.42.0) (Windows 10), Board: "Arduino Nano, ATmega328P"

20948_Working:2:10: fatal error: Icm20948.h: No such file or directory

#include <Icm20948.h>

      ^~~~~~~~~~~~

compilation terminated.

exit status 1

Icm20948.h: No such file or directory

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

[molecule]

I was able to get past the above compile-time error by placing all of the files inside ICM20948 inside the 20948_Working folder (see image):

I also changed the "includes" to have quotations instead of angle brackets:

#include "Icm20948.h"
#include "SensorTypes.h"
#include "Icm20948MPUFifoControl.h"

I'd still like to know what the 'correct' version is.