The tutorial is a beginners tutorial video which goes step-through-step explaining the process needed to create the animation. It does not work with Blender 2.7 or earlier. This is a relatively new feature which was introduced in Blender 2.8. This is particularly useful for creating 2D animations which can be included in your YouTube videos. This isn't a separate tool, but a different workspace, and arrangment of the tools and camera to make it easier to create 2D animations. It's always been possible to create 2D animations in Blender, but the video above introduces the new 2D Animation option on Blender 2.8 and Blender 2.9.

I've also created a video on using the shader editor for those ready to take the next step towards mastering 2D animations. If you don't know what that means then hopefully this video for beginners will provide a useful introduction. It includes the ability to create timeline based animations using Keyframes with automatic tweening and fine control over all the objects. Blender is well known as a 3D modelling tool, but it is also good for creating 2D animations.

Blender beginner tutorial 2.9