This article explains how to hide apps you've previously purchased on your iPad. Instructions apply to iPadOS 13 and later. These instructions will likely work in earlier versions of the operating system, though menu names and commands (and their locations) may vary.

To hide an app from the Purchased list on your iPadOS device, follow these steps:

Tap your profile picture in the top right corner of the App Store.

On the Account screen, tap Purchases to view the apps you've downloaded.