Try this: use App Library to search the procreate, see -> Use the App Library and Home Screen to organize your iPad apps -> Use the App Library and Home Screen to organize your iPad apps - Apple Support
- If you have find the app, tap & hold on the app, then drag to the Home screen & drop it.
You have quick access to App Library by tapping the App Library icon in the iPad's Dock.
I checked my purchase history and it also wasn’t there.
On your iPad you can check /search:
Go to -> Settings -> tap your profile -> tap Media and purchases -> View account -> log in.
Scroll to and tap -> Purchase history -> tap the last 90 days.
You will then see a list of 'years' and you can select a year to view.
You should know approximately what year you purchased.
Do you use the same Apple ID?