Microsoft has made Azure Virtual Desktop Hybrid generally available. Session hosts run on customer hardware through Azure Arc while brokering stays in Azure. The Hybrid service license is unpriced, Windows Server support requires RDS CALs with Software Assurance, and multi-session Windows is not supported at all.

Standard chaos engineering assumes experiments stop cleanly, blast radius is knowable in advance, and production is fair game. Payment systems violate all three. Salim Adedeji describes ECS-specific failure modes from enterprise deployments: a 60-second DNS TTL that produced 93-second failover, retry logic amplifying database load 2.4x, and AZ rebalancing loops that generic tooling misses.