There are many methods. Here we will introduce 2 methods.
First Method:
You can use "Wireless Display" of Nibiru OS and "Project" of Windows:
This method is the same as you share your phone screen to your computer.
①Open a headset with Nibiru OS, click Settings → System → Wireless Display




②And for the receiving device - PC, check this website to know how to set your Windows 10 PC:
Screen mirroring and projecting to your PC



③Then when you select the PC that receives the image on you headset, the image of the headset will be displayed on your PC.

Second Method:
If you know how to use ADB commands and your computer has configured the ADB environment, you can use this method.
- Connect the HMD with your computer using a USB cable.
-
Press Windows and R buttons on your keyboard, enter "cmd", and press the "Enter" button to enter the ADB page.
- adb devices
- adb shell screencap /sdcard/screen.png
- adb pull /sdcard/screen.png
- The screenshot will be stored under your system disk
