Receive Shadows And Stylized Shadows

For objects to receive cast shadows, you must enable this effect:

This will produce the following result:

If you want stylized shadows with sharp edges, you can change the Shadow Type to "Stylized"::

Here's the result:

Important note: This feature only works with the main Directional Light. It does not support additional lights such as Point Lights, Lightmaps, or other light sources—only the main Directional Light.

This approach is excellent for achieving a toon-style aesthetic similar to games like Lil Gator Game: