In the view layer tab, you will find all the related settings to customize freestyle to your needs.
In the render settings, check the checkbox on the freestyle section to enable it. What is freestyle rendering and How to use it in Blender? Freestyle rendering is an NPR(non-photo-realistic) render engine that adds a layer of lines above your render based on the geometry in your scene. Everything from cartoons, to blueprints and wireframe rendering, can be made with freestyle. I realized that freestyle was a lot of fun and had multiple uses.
I needed a reliable way to render wireframes and came across freestyle rendering.
