What changed
Citrix on vSphere used to be affordable because of one licence: vSphere for Desktops. It carried vCenter Server and vSphere Enterprise Plus, it was priced per user, and the Citrix licences were bought on top of it.
Broadcom retired it. To keep running the platform you now buy vSphere Foundation or VMware Cloud Foundation, both per core and both by subscription. For a desktop estate on the same hypervisor, counting per core means a significant cost increase.
The third option
Omnissa’s Horizon editions include vSphere Foundation. Replace Citrix with Horizon and the hypervisor, vCenter and vSAN come under the same licence.
Whether that comes out cheaper depends on how many users you have and on when the Citrix contract ends.
The proof of concept build
An Omnissa Connection Server, attached to the vCenter and the Active Directory you already run. A Windows 11 master VM. An RDSH server if you publish applications rather than desktops. A Unified Access Gateway for access from outside. An App Volumes server to assign the applications.
The proof of concept tests the licence model and the migration plan.
How it runs
Collect the licence information, produce a pre-calculation, and put the optimisation and a migration scenario in front of you before anything is installed. Then the Horizon design as a replacement for the Citrix platform, then the proof of concept, then a migration concept, then the migration, then your acceptance.
You can stop before the proof of concept.
