Nodes can be used to modify the geometry of an object in a more complex way than regular modifiers. You can use them with a geometry node modifier. The nodes were intended to covert the entire stack of modifiers in Blender to a node-based system, ultimately providing something far more productive than the stack could ever be. In this tutorial Ducky 3D show, you How to use Abstract Geometry Nodes to create really cool seamlessly loop animation
How to use Blender Abstract Geometry Nodes to Create Loop Animation
Create Abstract Circle Spin Using Blender Geometry Nodes
Blender Geometry Nodes’ new feature has serious potentials to create ultimate 3d graphics.
In this tutorial, Bad Normals show you how some new features to create circles spin using abstract geometry Nodes.
Using those nodes you can rotate some circles and create a nice abstract work in Blender 2.93. You can also create an easy abstract animation since it is procedural and can be animated with a single slider.