Fusion 360 cannot be easily packaged into a traditional portable format for several reasons:
Autodesk Fusion 360 is a leading software for computer-aided design (CAD), computer-aided manufacturing (CAM), and computer-aided engineering (CAE). Because it is a powerful tool, many designers, engineers, and students search online for a "portable" version. They want a version they can run from a USB drive without installation. Autodesk Fusion 360 Portable