In Google Cloud, something like this is mostly unnecessary. The project model scopes resources to a particular project within an organisation, rather than all resources being global to the account. This gives a really good first cut at isolating different environments and projects.
This goes beyond just prod/staging. It allows you to easily manage fine-grained roles down to e.g. particular microservices and also control how users can access those resources as minimally as is necessary.
So you can recreate the project-model here, and also refine it beyond that.
