Currently, there is no sorting logic implemented for deployments in the FusionAuth Cloud account portal. The order of deployments is not sorted alphabetically or by any other consistent criteria at this time.
This has been noted as a feature request to add sorting capabilities (or the ability to manually sort) deployments in the account portal. This would help prevent accidental selection of the wrong instance when managing multiple FusionAuth Cloud deployments.
In the meantime, extra care should be taken when selecting deployments from the list to ensure you're working with the correct instance. You can use the Rename feature (available in the Action dropdown menu for each deployment) to give your deployments descriptive names that help distinguish between different products or environments.
Related Documentation Managing Your Deployments - Overview of managing FusionAuth Cloud deployments in the account portal The Account Portal - Documentation on accessing and using the account portal FusionAuth Account Portal Reference - Complete reference for the FusionAuth account portal features