https://source.android.com/docs/core/ota/modular-system/adservices


AdServices

The AdServices module, introduced in Android 13, supports the Privacy Sandbox initiative that aims to create technologies that both protect people's privacy online and give companies and developers tools to build thriving digital businesses.

More information is available on the Android Developer site.

Motivation
The goals of the Privacy Sandbox Initiative are:

Build new technology to keep user information private