Hello @MatthewLeigh
The functionality to view a report of Outcome numbers by assignment is not a standard feature in Canvas's native reporting for instructors. Your university's IT staff were correct in telling you that this report isn't available out of the box.
However, there are workarounds and alternative methods to get this data. The most common and direct method for a lecturer is to use the Learning Mastery Gradebook. While it doesn't give you a single report for all assignments, it does allow you to assess and view outcomes related to specific assignments. Another method is through Canvas's API, but this requires technical expertise and is often handled by university staff or a developer.
Here are some resources for reference.
How do I use the Learning Mastery Gradebook to view outcome results in a course?
Mastery Connect + Canvas Integration Teacher User Guide
Mastery Connect allows teachers to effectively assess standards, monitor student performance, and report student mastery. It houses many powerful features, such as the ability to sort a classroom based on student mastery of a specific standard. Teachers can also take pictures of learning artifacts and attach them to assessments. Mastery Connect integrates into Canvas and we also offer migration services for moving Canvas assessments into Mastery Connect and then aligning them to outcomes or standards.