...
There may be actions or capabilities that are only available on Cloud or specific releases of Server or Data Center. The vast majority of functions are the same. However, there are some cases where there are differences, and those differences may change depending on the Confluence Server version.
Specific differences
Authorization Authorization and user management-related actions:
There are underlying differences in the available information and actions that can be completed.
Specifically, Cloud uses Atlassian ID, which is significantly different from standard Confluence Server user management. Also, Cloud supports and recommends using Atlassian API tokens in place of passwords. Using the CLI requires users to generate the appropriate key for their Atlassian ID.Add and remove application link actions only apply to Server.
...