What is Snowflake Horizon Catalog, and how does it support Apache Iceberg?

Snowflake Horizon Catalog provides unified security, governance, and discovery across regions and clouds. It now supports Apache Iceberg through Catalog-linked Databases (generally available soon), which federate across Iceberg REST catalogs and automatically sync Iceberg objects managed by remote catalogs into Horizon Catalog. This allows data engineers to manage their entire Iceberg ecosystem from a single interface.