Description

Just a small bit of documentation to clarify the role of order vs enforce.

Additional context

I was confused about this, would have prevented #16173

What is the purpose of this pull request?

• Documentation update

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines, especially the Pull Request Guidelines.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Update the corresponding documentation if needed.