Assuming that you are using an Apple Power Adapter, or other USB-C Power Adapter that supports USB PD (Power Delivery), if you have any concerns whatsoever, you would be best advised to seek assistance directly from Apple Support and request a remote diagnostic test of your iPad. You can contact the Support Team using the Support link at top-right or bottom-left of this page.
Alternatively, you can initiate and manage your support cases from Apple devices using the excellent Apple Support App. If not already installed, the App can be downloaded from the App Store:
https://apps.apple.com/app/apple-support/id1130498044
You might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to test and assess your iPad. If a fault is identified with your iPad, Power Adapter or charging cable, you'll be in the best possible place to explore available remedies:
Genius Bar Reservation and Apple Support Options - Apple