When working in an environment and you want to save your progress, you have two options:
Pause the environment: In other words, save the current state of the environment and stop consuming cloud resources. It can be restarted later, and you'll pick up where you left off.
Commit and push your changes: Just like locally, you can create a Git branch, commit your changes, and push them to your remote repository. Once this is done, you can close the environment permanently or reuse it to work on something else.