With the release of https://docs.expo.io/versions/v32.0.0/sdk/background-fetch in SDK 32 there is still a need for Android to get this feature.

I'm impartial to how this gets implemented, but RN core has a system that could be utilized

https://facebook.github.io/react-native/docs/headless-js-android.html

NOTE: This feature has been opened due to the original background task feature request being marked complete without Android support being included in the current implementation