REVISED
I had the same problem for the first time a few days ago. I also have a new iPad 10.5 Pro, wifi only, with 256 GB, running iOS 10.3.3. I was updating apps in the App Store app and walked away for a few minutes. When I returned, instead of seeing the Updates tab screen in the App Store app, I was viewing the Features tab screen. I tried touching the Updates tab button but my iPad was completely frozen. I tried multi-tapping and could view my home screen and the App Store app, but could not close the App Store app by swiping upwards or bring up my Home screen by touching it, and I was now unable to close multi-tapping.
Consequently, I was forced to do a hard reset and then all was OK again.
One more strange thing happened. By touching settings > privacy > analytics, I could see the analytics entries which included 2 entries for my hard reset, among other entries. I exited out of this view and called Apple Support to report the issue. During my telephone call, I tried to return to view the analytics entries (which minutes ago had displayed about 12 entries) and it now displayed no entries.
I personally believe this is a software bug in iOS 10.3.3 effecting the new iPad Pro 10.5 only. Doing a reset or an uninstall will not help, in my opinion, and is a waste of a lot of time. My Apple advisor did not recommend anything except seeing if it happened again. He also did not mentioned that he was familiar with this issue. This surprises me because of the number of people reporting the same issue above.