There is a great misunderstanding as to what serverless actually is. So many people, including this article, equate serverless to cloud functions. There are plenty of services like Google Cloud Run or FaunaDB that are also serverless.
IMO what makes something serverless is that you don't need to provision or manage infrastructure, and also no need to worry about scaling as it will go up and down as needed.
IMO what makes something serverless is that you don't need to provision or manage infrastructure, and also no need to worry about scaling as it will go up and down as needed.