In iOS 12, Apple added the iPhone X gestures to the iPad. Here they are!
Warning: Must have iOS 12 on your iPad.
iPad Gestures in iOS 12
There are three separate parts.
On your Home Screen or Lock Screen, swipe down from the top right part of the display to get to the Control Center.
On your Home Screen, swipe down from the top left or middle part of the display to get to the Notification Center.
Home Screen / App Switcher
In your apps, swipe up from the bottom part of the display to get to the Home Screen or swipe up and hold to get to the App Switcher.