1 - Proposed title of this feature request

Satellite/Virt-who compatibility with Proxmox 

2 - What is the nature and description of the request?

Actually Satellite Guides shows no compatibility with Proxmox which is an open-source server virtualization platform for managing virtual machines (VMs) and containers

https://docs.redhat.com/en/documentation/red_hat_satellite/6.17/html-single/configuring_virt-who_for_virtual_machine_subscriptions/index#virtual-machine-subscriptions-overview

3. Why does the customer need this?

With the encreasing of new technologies and tools, Satellite might take advantages on increasing the compatibility.

4. Is there already an existing RFE upstream or in Red Hat Bugzilla?

No RFEs were found so far.

5. Is the sales team involved in this request and do they have any additional input?

No, sales team is not involved.

6. List any affected packages or components.

Virt-who + Red Hat Satellite