Well, it finally happneded! Updateing my iPhone resulted in breaking Google Authenticator. Thankfully, there is an easy fix.

Settings > General > iPhone Storage > Google Authenticator > 

Offload App and then Reinstall

This solution is easy enough to find with a quick Google search. I’m including it here just for my own future reference!

In related news, appearently you can now reinstall an app on IOS without deleteing it’s data!

Further Reading:
https://support.google.com/accounts/thread/75786136?hl=en
https://9to5mac.com/2020/01/21/how-to-offload-apps-in-ios-to-save-space-without-deleting-their-data/