Async/Await is not a threading option. It merely is a programming method that allows the only JS thread to jump around between operations, making better use of the CPU time.
This is a life-long misconception beginners have, so we must not spread it around in articles. You should remove this part.
Furthermore, literally every async/await tutorial/article out there only shows how to release the thread, but they never show you how to really program asynchronously.
Feel free to read this article.