How does the rotor zoom option work?

I turned on the zoom option for the rotor and I’m trying to figure out how it works nothing seems to happen after I rotate to zoom and then swipe up or down

I have a 2017 10.5” iPad Pro running iOS 13.3.1. Thank you.

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Another one for future

Another one for future reference. I talked with Apple support and they were only able to get it working without Safari. It increments the size of the page. I wasn’t able to get it to work on my end though. The rep said she couldn’t get it to work on any other app or the home screen. It looks like this one might be a feature that wasn’t ready for release.