This article explains how to organize apps on your iPad's Home screen. These instructions apply to the most recent versions of iPadOS.
Rearrange and organize iPhone and iPad icons and apps in minutes instead of hours
Once you've created a folder, moving an app into a folder is as easy as moving an app. However, instead of placing the app in an open spot on your iPad's home screen, you're placing it in a folder.
Tap and hold the app icon until a menu appears, then select Edit Home Screen. (The app icons will wiggle and show an X logo.)
Tap the app with your finger and drag it to one of the available folder app icons. To create a new folder, drag the app to an app you want to share the folder with.