Environments overview
Environments are tied to three different stages of the development lifecycle: development, testing, and publishing to customers. They help with isolating the features ready for your customers from the ones you're developing or testing. Frontend components (and other features) can only be used in the environments for which they've been activated. For more information, see Working with environments in the Studio.
Suggested development workflow
While you can adopt your own development workflow, we recommend that you follow the workflow mentioned in the Work with environments as a developer section to use environments efficiently.