Addressed EEE doc ask #30944008

Added a note on Archive Tier not supported for ZRS enabled storage in Az Storage and  RSV to address WI - https://msazure.visualstudio.com/One/_workitems/edit/30944008

Author: AbhishekMallick01

articles/backup/backup-support-matrix.md

@@ -2,7 +2,7 @@
 title: Azure Backup support matrix
 description: Provides a summary of support settings and limitations for the Azure Backup service.
 ms.topic: reference
-ms.date: 06/11/2025
+ms.date: 06/24/2025
 ms.custom: references_regions, linux-related-content
 ms.service: azure-backup
 author: jyothisuri
@@ -203,6 +203,9 @@ The following table lists the workload specific operations supported even if zon
 | **Disk** | - Backups are successful, if the protected disk is in an active zone. <br><br> - Restore to an active zone is successful. |
 | **MARS** | Backups and restores are successful. |
 
+>[!Note]
+>Archive Tier is unsupported on Zone-redundant storage (ZRS) in Azure Storage and Recovery Services vault.
+
 ## Monitoring and Reporting support
 
 Azure Backup provides the following monitoring and reporting capabilities on backup operations: