In Terraform, theresource nameis the second argument in the resource block.
The structure of a resource block is:
resource "provider_resource_type" "resource_name" {
# Configuration settings
}
Here, the provider type isgoogle_compute_instance, and theresource nameis "main".
The name "test" is simply the value assigned to the name attribute, which is unrelated to the Terraform resource name.
"google" and "compute_instance" are part of the provider and resource type, not the resource name.
Official Terraform Documentation Reference:
Terraform Resource Documentation

Any user with permission to apply a plan can apply it, not only the user that generated it. This allows for collaboration and delegation of tasks among team members.

Terraform can call modules from various sources including the public Terraform Registry, private registries, local file paths, or version control systems like GitHub.
References:
Terraform Modules

The terraform state show command allows you to access all of the attributes and details of a resource managed by Terraform. You can use the resource address (e.g. provider_type.name) as an argument to show the information about a specific resource. The terraform state list command only shows the list of resources in the state, not their attributes. The terraform get command downloads and installs modules needed for the configuration. It does not show any information about resources. References = [Command: state show] and
[Command: state list]

The required_providers block is used to specify the provider versions that the configuration can work with.
The version argument accepts a version constraint string, which must be enclosed in double quotes. The version constraint string can use operators such as >=, ~>, =, etc. to specify the minimum, maximum, or exact version of the provider. For example, version = ">= 3.1" means that the configuration can work with any provider version that is 3.1 or higher. References = [Provider Requirements] and [Version Constraints]