Can safari be updated for a ipad

Yes - but only through updating the installed version of iOS/iPadOS.

Safari is an integral element of iOS - and cannot be updated independently of the Operating System.

If you have already updated to iPadOS14 (iPadOS 14.2 being current), you already have the most recent version of Safari for iPad.

As Safari is a built in Apple App, it updates when your device gets updated. So no, you can not update it individually, but yes, it updates when you update your device

That is correct.