Access webpageURL from NSUserActivity in React Native App Clip

I'm throwing together but of a proof of concept using the new iOS 14 AppClips and ReactNative. I followed this tutorial here: https://medium.com/@nazrdogan/create-app-clips-for-ios-14-in-react-native-abfade233fea and am able to successfully run the app clip.

I'm struggling however to get the webpageURL for the userActivity in the react native code. Traditionally it would be something along the lines of https://medium.com/@nazrdogan/create-app-clips-for-ios-14-in-react-native-abfade233fea but only receive a null value. I have set the _XCAppClipURL in the schemes environment variables.

This is a hacky project so not too concerned about a clean implementation.