[Backport] Group explanations

[tudor-da]

Backport of #11715

Pull Request Checklist

• Read and understand the contribution guidelines
• Include appropriate tests
• Set a descriptive title and thorough description
• Add a reference to the issue this PR will solve, if appropriate
• Include changelog additions in one or more commit message bodies between the CHANGELOG_BEGIN and CHANGELOG_END tags
• Normal production system change, include purpose of change in description
• If you mean to change the status of a component, please make sure you keep the Component Status page up to date.

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