How to download iPadOS 13 simulator for Xcode?

Solution 1:

If anyone is still finding it difficult, when you download simulator, from Devices and Simulators option, you select an iOS version (say iOS 14.4). Once the download is finished and installed, you will have all the iPhone device simulators and iPad device simulators of OS version 14.4 available to be used as target device.

There isn't anything specific for iPad OS.