An ILT deployment contains only Classes and Classrooms. On the ILT deployment, a user should be enrolled in a classroom to perform any labs in a class and these classes are taught by accredited GCP or Google Training Partner instructors.
If you are looking for Self-Paced labs, please visit a SPL deployment from here: https://www.qwiklabs.com/catalog to access all labs and Quests. In a SPL deployment, you will find various self-paced labs, ranging from beginner to expert topics. Many labs are also organized into learning Quests that help you learn how to work with all the GCP services. Users just need to select their desired lab from the lab catalog and hit the start lab button to get started.