Hi Nazik,
You do need a license to access and use Mendix Data Hub, so you won’t be able to compete that learning path without a licensed version of Mendix with also Mendix Data Hub enabled.
You can find out more details about Data Hub though, there’s some further documentation on Data Hub here
https://docs.mendix.com/data-hub/data-hub-catalog/
Plus there’s also a recording from Mendix World here covering Data Hub
https://www.youtube.com/watch?v=Dv2K8RuF7ME&ab_channel=Mendix