Oracle, AWS & Azure all have "Cloud at Customer" offerings.
And these offerings have existed for years.
And from hardware manufacturers, Dell/VCE, Nutanix, and more "hyper-converged" infra has existed.
Note: I'm not being a hater. I'm just genuinely confused.
---
https://www.oracle.com/cloud/cloud-at-customer/
https://azure.microsoft.com/en-us/products/azure-stack
https://aws.amazon.com/outposts/