The Project Creation on Google Cloud is used to organize and manage the resources and services you want to use on the Google Cloud platform. In this case, it's the first step to be able to use the phishing report button.
Detailed Procedure:
1. Log in to Google Cloud
2. Click on "Select project":
3. Click on "New project":
4. Rename the project to "CG Phishing Button" and then click on "Create":
5. Click on "On the navigation menu" of Google Cloud:
6. Go to "APIs & Services Enabled APIs & Services":
7. Click on the search bar and search for "Apps Script API":
8. Click on the found result and click on "Enable":