Let's not continue this cargo cult mumbo jumbo.
Terraform is literally a program that looks at a declarative configuration file, looks at a state file, queries some APIs, and then submits some API calls. That is all it does.
There is no "infrastructure", or "config", or "cloud". It's literally just calling HTTPS APIs, the same way it would call a system call or a library function. Call function, pass input, receive output.
There is no magic sauce. There is no difference between it and any other tool that has a declarative configuration, a state, and operations to try to change things to match a desired state.
It's all configuration management. The words "infra", "orchestration", "cloud", etc is marketing bullshit. It's all just software.