Yes, using Pub/Sub topic subscriptions.
Similarly to segmenting, you can subscribe certain users to topics of your choice (e.g.
/topics/en-US) and then send a push notification to all users subscribed to said topic using the Send Notifications API:{
"to": "/topics/en-US",
"data": {
"message": "Hello World!"
}
}
Before you can send notifications to a topic, you must subscribe at least one user to that topic. This automatically creates the topic. Instructions on subscribing your users to topics vary by platform: