Yes, You Can!

However, I would recommend considering the full version, as it can potentially save you a significant amount of money.

While you cannot directly export procedural materials from Blender, there is a workaround. By baking the textures to images, you can ensure that the materials will look the same in all 3D programs, including game engines. Material Composer materials are optimized to be seamlessly baked using the Simple Bake addon, making the process straightforward and efficient.

Download the zipped file (.zip), then go to Edit > Preferences > Add-ons > Install. Navigate to where you saved your .zip file, select it and click "Install".

The ✱ symbol indicates that the property is a Boolean property. In this context, a value of 0 represents "False," while a value of 1 represents "True." The ✱ icon serves as a visual cue to identify these Boolean properties within the node groups.

• Identify the Surface, Normal, Height, Displacement, and Alpha outputs (if available) of the material node or the last node in the node tree.
• Connect these outputs to the corresponding inputs of the effect/decal node group. For example, if the effect/decal node requires a surface input, connect the surface output of the material node to the surface input of the effect/decal node group.
• Finally, connect the outputs of the effect/decal node group to the material output. This ensures that the effect or decal is properly integrated into the material and contributes to the final appearance of the rendered object.

Simply restart Blender.