Love the fact the article links directly to the solution. Thank you for this!

This event prompted the development of an empty app: a placeholder with the same name and a massively inflated version number, SafetyCore v2000000000. Users sideload it, so the Google Play Store can’t overwrite the app with the real SafetyCore.

Just make sure to read the GitHub page first as proper uninstallation of the original is essential.