I’m running a service extending NotificationListenerService:

class NotificationBlockerListenerService : NotificationListenerService() {
    override fun onNotificationPosted(sbn: StatusBarNotification) {
        cancelNotification(sbn.key)
    }
}

I does remove correctly the notification in the notification list (this list:)

But it doesn’t block the notification bubble/snack from appearing (this one:)

Is it possible to block this bubble?