It be helpful if each category: "https://app.linuxacademy.com/learning-center/devops" could be listed as a slide show that is 3x3 for each section rather than collapse this. I am not looking for tons of material but like to weed down to a section I am interested in: Example: DevOPS: Beginner - just list this 3 x 3 without a collapse button.
If this a good feature allow users to select courses biased on view: ex: Search View vs Box View. I liked the older style when I could look to see what was under each option non-collapsed on one page. If I click on Beginner I would expect to see only beginner videos tab.