**Why do we need to install an app to get push notifications?**

We are used to get pre-installed solutions on Google-certified devices for many services such as the browser (Chrome), the map (Google Map), keyboard (Google keyboard), camera (Google Camera), push notifications (Play Services), etc.

Our free solutions aren't pre-installed on our devices: if we want a free map, we need to install it. It works the same for the push notification service.

Some Android-based OS, that aren't certified by Google like LineageOS and GrapheneOS, choose to ship as less applications as possible to keep the users free to choose their tools. The push service is one of them.

Other OS, like /e/OS, choose another strategy by offering default tools out of the box. On these systems, there may be a default UnifiedPush distributor.