My colleagues are able to create their own libraries, yes.
I am able to see my own libraries in Photoshop, Illustrator and Indesign. They are able to see their own libraries in all three programs but they cannot see my shared ones in any of these three programs.
The only thing I can see that is different is the cloud icon on the bottom right of their palette is saying the below yet mine does not. They are however signed into the Cloud.