You can back up iPad using iCloud or your computer. To decide which method is best for you, see > [your name] > iCloud > iCloud Backup.
Turn on Backup This iPad.
iCloud automatically backs up your iPad daily when iPad is connected to power, locked, and connected to Wi-Fi.
Note: On Wi-Fi + Cellular models > [your name] > iCloud > iCloud Backup, then tap your iPad (This iPad).
To reduce the size of a backup, tap the apps you don’t want to back up anymore; the apps’ existing backup data will also be deleted from iCloud.
For more information, see the Apple Support article set up syncing over Wi-Fi.
set up syncing over Wi-Fi.