Hi there, @MaskeM ...
I'm not sure if this would apply at your school, but for us, the standard amount of storage included in our annual subscription of Canvas Studio is 1 GB per user FTE (Full Time Enrollment). The total is pooled for our entire account. So, if we had 2,000 FTEs, we'd have 2,000 GB of storage.
For more specifics, I would recommend that you reach out to your Account Services team at Instructure, and they should be able to help you with any questions about this.
Hope this helps a bit.
