Proxmox VE is now Horizon Ready, but in manual mode: you create and power off the desktops yourself
On 4 September 2026 Proxmox announced that Proxmox VE has achieved Omnissa Horizon Ready Hypervisor certification. It is real and it removes a requirement, but it lands in "Manual Provisioning Mode": the program page states that provisioning and power policy are not supported. Meanwhile, Horizon has been integrating over the API with another non-vSphere hypervisor since December. Two different regimes, what Horizon stops doing for you, the RAM and GPU arithmetic nobody runs, and which estates this is a way out for today.
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