There’s some irony here

According to GrapheneOS, a security-oriented Android Open Source Project (AOSP)-based distro: “The app doesn’t provide client-side scanning used to report things to Google or anyone else. It provides on-device machine-learning models that are usable by applications to classify content as spam, scams, malware, etc. This allows apps to check content locally without sharing it with a service and mark it with warnings for users.”

So the headline is wrong too.

TL;DR:

There is a Safetycore “placeholder” app on github here

https://github.com/daboynb/Safetycore-placeholder

All it does is create an app with the same name in the app list. This should cause an error if Android tries to reinstall Safetycore.