Explain the deployment of the website on Google Cloud (Website is already deployed)

One of my client have a website which another person hosted on Google Cloud. The immediate (instant) requirement is someone has to go through the google cloud platform dashboard (i will provide my computer access via anydesk) and explain me the basic things like how it is deployed, how the Google cloud pricing will be (whether it is static or dynamic), what is the advantage and disadvantage etc.

If I am satisfied, I will be associating with the person in long run to maintain 50+ other websites which is hosted on shared hosting.