How do you know what devices are connected to your iPad Pro or also your android 11 phone
How can yow tell what devices are connected to your Ipad pro
The answer to that depends on what you mean by "connected". Do you mean connected by Bluetooth? If so, go to Settings>Bluetooth. Do you mean what devices are connected to your Apple ID? If so, follow these instructions:
Check your Apple ID device list to see where you're signed in - Apple Support
If you mean something else, please explain.