Because Fusion 360 is a unified platform, changes to your 3D model automatically update your 2D CAM setups. If you change a hole size in the sketch, the toolpath in the Manufacture workspace flags the change, allowing you to regenerate the G-code without redrawing anything. This seamless link between design and manufacturing is why Fusion 360 2D workflows are revolutionizing small machine shops.
For the vast majority of makers and machinists, You get parametric sketching, professional drawing generation, and industrial-grade 2.5D CAM all in one free (for hobbyists) or affordable (for professionals) package. fusion 360 2d