[Privacy feature request] Graphene os app store on vanilla builds

[2hinata-hyuga]

Graphene Apps is the client for the GrapheneOS app repository. It's included in GrapheneOS but can also be used on other Android 12+ operating systems. Our app repository currently only provides our standalone apps and a mirror of the core Google Play apps to make it easy for GrapheneOS users to use [sandboxed Google Play](https://grapheneos.org/features#sandboxed-google-play) with versions of the Google Play apps we've tested with our sandboxed Google Play compatibility layer.
source: https://github.com/GrapheneOS/Apps/releases

1. On Which custom ROM you have find this feature?
   Answer: Awaken os vanilla build for onpelus 9r

2. what is the purpose of this feature?
   Answer: so that users can install and use sandboxed goolge play services when as required and uninstall them after using them.

3. cant you just use gapps build?
   Answer: yes i can, but i love vanilla forever.

4. cant you just use microg?
   Answer: microg is not supported for backups and resotre, even if supported would love to use snadboxed google play services and unistall them after backup/restore.

5. F driod and aurora store?
   Answer: yes i can download these store and install apps, but i need google play services temporarily to perform restore/backup and to have certain apps work for certain time.