How does controller function when Bluetooth is turned off?

So for the ease of reading the answers to these questions, I am going to rewrite the question and then answer it just below.

1. Does this work for all ps5 controller versions?
   1. Yes, this does work for all PS5 controller versions.
2. Also how is Bluetooth turned off, is there a switch on the console itself that turns off? Is the controller using any Bluetooth when connected to usb cable?
   1. There is not a switch on the console itself; the console just does ping other devices and doesn't allow itself to be pinged by other devices.
3. Is the controller using any Bluetooth when connected to usb cable?
   1. No, the controller is not using any Bluetooth with the USB.
4. Is there a way to test to make sure no Bluetooth is being used during this time?
   1. This link is a great way to check if there are bluetooth signals nearby Bluetooth Tester.
5. If Bluetooth is off then why does the controller light turn on for a few seconds when pressing the PS button on the controller?
   1. This is probably the controller attempting to connect to the PS5 and it not finding any connection point.

# Are 3rd party PS controller allowed to be used?

1. The third party controllers are allowed to be used, but there is no support for any PS5 games with them. There are also some safety concerns with these controllers.