Perhaps this Support Page will help...:
Draw, annotate, and use Scribble in Pages, Numbers, and Keynote - Apple Support
The iPad User Guide is a rich source of frequently overlooked information about your iPad and iPadOS. The Guide is available both online using a web browser (such as Safari) - and is directly accessible from the Tips App:
iPad User Guide - Apple Support
The Tips App, installed by default on all new models of iPad, provides a brief introduction to your iPad - and leads you to the User Guide. In case you missed it, here is a link to the Tips App:
https://apps.apple.com/app/tips/id1069509450
Apple also has a huge YouTube Channel - containing videos and feature guidance:
https://www.youtube.com/user/Apple
There are also comprehensive guides for iCloud and Apple’s main productivity Apps, such as Numbers (spreadsheets), Pages (documents) and Keynote (presentations):
iCloud User Guide - Apple Support
Numbers User Guide for iPad - Apple Support
Pages User Guide for iPad - Apple Support
Keynote User Guide for iPad - Apple Support
As a new user of iPad, be aware that Apple Stores have many in-store workshops available in which you can participate. These workshops are free to attend. You can find-out what's available, when - and make a booking - using the Apple Store App:
https://apps.apple.com/app/apple-store/id375380948
For available sessions at your favourite (or other) Apple Stores, just tap the Sessions button within the App.
