Procedure to install enterprise version of apollo graphql

I want to know what is the procedure to install enterprise of apollo graphql into the project after buying it.

I found these instructions after searching in bingAI chat
After purchasing the Enterprise version of Apollo GraphQL, you can follow these steps to install it in your project:

1. Visit the Apollo GraphQL website and sign in to your account.
2. Download the latest version of Apollo Server for your platform.
3. Extract the downloaded archive to a directory of your choice.
4. Open a command prompt or terminal window and navigate to the directory where you extracted the archive.
5. Run the following command to install the required dependencies: npm install.
6. Define your GraphQL schema in a file named schema.js or schema.ts depending on whether you are using JavaScript or TypeScript.
7. Import the required modules and define your Apollo Server instance in a file named server.js or server.ts.
8. Start your server by running the following command: node server.js or node server.ts

but then again instructions are changing each time I refresh and search same question.
Can you tell what is actual procedure