In the Summer '22 Release Mulesoft Composer was renamed to Flow Integration.
At the time (Jul 14) I raised a case with the Trailhead Help Team (#00719838) alerting them to this and suggesting the content was updated.
However to date the new terminology has not been adopted on Trailhead and elsewhere in groups like this where the old name is used.
Infact since the name change new content has been released with the old name
Hey @Tom Bassett Just got in touch with our content team and they relayed the following: Typically we don't change old notes because they are to capture a point in time. We did update the latest version: https://help.salesforce.com/s/articleView?id=release-notes.rn_automate_composer.htm&release=244&type=5
hope this helps!