If you were looking for a quick and easy method for giving your 3D models cartoonish looks, here's an awesome free-to-download pack that might help you out. Check out Toon Shader MatCap Pack, a great collection by Artist, Educator, and Creative Director at School of Motion E.J. Hassenfratz that comes with 40 detailed cartoon-style textures in many different styles, including halftone, cel shader, Spider-Verse, and watercolor.
Moreover, the author describes the pack's textures as "compatible with any 3D software", with Blender, Cinema 4D, Maya, and Nomad having been listed as applications the pack works with.