Mobile notifications do not require outside operators. UnifiedPush / ntfy is FLOSS, and allows for a single background connection for multiple apps / notification channels. It can also be self-hosted (and I do!)
This puts the operational costs (number of devices and notifications) on whomever is running the server - and because of how valuable metadata is, I expect them to be run in-house by governments
Mobile notifications do not require outside operators. UnifiedPush / ntfy is FLOSS, and allows for a single background connection for multiple apps / notification channels. It can also be self-hosted (and I do!)
This puts the operational costs (number of devices and notifications) on whomever is running the server - and because of how valuable metadata is, I expect them to be run in-house by governments