If the model is to stay within Blender to render an image or video animation, then there is no need to bake the procedural shaders.
To bake these down to images, you will also need to UV unwrap the model, extra work that is unnecessary.
If you want to export your model to a game engine for example, you will need to do the extra work. Other software won’t recognise Blender’s shader tree, which is why you need to import baked image textures as well as the model into the game engine.
