A lot of animated explainer videos today have a flat, two- dimensional look. This 2D approach works truly well for simplifying ideas or processes. However. in some cases, it's crucial to add a third dimension: depth.
It can be hard to discriminate between 2D animation and 3D animation. If you actually wish to get technical, it's the distinction between drawing 2D illustrations and creating 3D designs. However. the typical viewer does not care about all of that. They feel in one's bones that 3D seems more sophisticated and visually richer.
See more here: https://www.youtube.com/watch?v=n8NCzfMJQ6M