https://www.drupal.org/node/2426139 β
The RSS Publishing page is only in the old documentation system. It is under the Contrib modules for building the site functionality section.
Since Views is in Drupal Core, I suggest this page get migrated to the Creating Listings with Views chapter β of the User Guide. The page would be called Adding an RSS Feed Display to a View
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It's likely this issue predates Contrib.social: some issue and comment data are missing.