Play Services for AR support
Stock supports AR app via ARCore, now known as Play Services for AR
While having a different AR-only variant of Play Services may seem counter intuitive, we wouldn't be shipping it by default, but instead simply trying to make it work if it doesn't take too much effort.
This is helped by the presence of support for devices without Google Play Services (for China), per https://developers.google.com/ar/discover/supported-devices#android_china
Edited by Chirayu Desai