I want to turn Do Not Disturb only on my iPad not my iPhone and iPad.
I want to only turn on DO NOT DISTURB on my iPad only not my iPad and iPhone.
I am not sure which iOS/iPadOS you have installed on your iPad and I am not sure which iPad you have. I will assume that you have iPadOS 15 installed on your iPad.
On your iPad, open Settings ➔ Focus ➔ Share Across Devices : Set this to OFF.
Axel F.