Push OnePlus push notifications. Only used by OnePlus' pre-installed apps. Pushes "surveys and other junk" according to a user. https://forums.oneplus.com/threads/psa-non-root-root-stop-oneplus-push-notifications.580058/ OnePlus can remotely send push notifications: https://www.androidpolice.com/2019/07/01/oneplus-accidentally-pushed-a-cryptic-notification-to-all-7-pro-users/
Phones target this application