An Atom RSS feed can be consumed by the AppArmor News Feed Module. To configure a RSS feed for the News Feed module, the following url must be in place in the Feed URL field in the Designer.
Basic URL
https://[client].apparmor.com/Tools/RssNewsFeed/?url=[url]
Example URL
https://universitycollege.apparmor.com/Tools/RSSNewsFeed/?url=https://www.nytimes.com/svc/collections/v1/publish/https://www.nytimes.com/section/world/rss.xml
In this example, the rss feed is the New York Times https://www.nytimes.com/svc/collections/v1/publish/https://www.nytimes.com/section/world/rss.xml
Alternative Solution
In the event the Atom RSS feed is not working, you can go to rss.app to generate your own RSS feed: https://rss.app/
This generator will allow you to take the Atom feed you have, or any other link you wish to use, and will generate a readable RSS feed the news module can ingest.
Take the Basic URL from above and paste it into your News Feed. Then take the generated URL you just created from rss.app and implement it like you see above.