Hello @MrSky,
If you’ve enrolled in the course shared by @Sumit_7, you won’t be able to access those notebooks because it’s a free self-paced version of the course.
Since you mentioned you have access to the Databricks Academy Labs subscription, you’ll need to enroll in the lab-enabled version of the same course instead. You can search for it under the Catalogs in My Subscription and enroll from there.
Once enrolled in that version, you’ll see a SP lab environment in the syllabus, which is your lab environment. From there, you’ll be able to access the notebooks shown in the demo.