You can ask the cloud to deploy a container to Kubernetes. You can rent a VM with Hetzner. You can rent rack space in a data center. You can build your own data center. You can build your own server hardware.
Depending on the scale you operate, you'll draw the line somewhere where it makes sense to you (which may change over time).
Dev teams will still operate best when they can deploy containers to Kubernetes and without having to design their own server hardware. You now need to build abstractions in house. Maybe you can sell these to other people? Congratulations you are now a cloud provider.