– “The environment copy, what is it for?”

The environment copy allows you to duplicate an environment and thus have 2 identical environments (same structure, same tables, same data) on 2 different servers.

The interest is to have, for example, a development environment identical to that of production (in the case where the prod environment is copied in dev) and to provide developers with a working base reliable and up-to-date before they start coding (Caution, it may be necessary to anonymize the data!).
In other cases, the environment copy can make it possible to put a test environment into production, if it has successfully passed all the validation stages, or to set up a DRP (Disaster Recovery Plan) on D-1.

Finally, if the duplication is done through backups, this makes it possible to validate their viability.