Unity Portable Install - _best_

To create a portable installation of Unity, follow these steps:

Unity Hub is more difficult to make portable because it relies heavily on system-level services. For a streamlined experience, it is recommended to bypass the Hub and launch the Editor directly using the batch file method described above. Tips for Peak Performance unity portable install

Instead of letting Hub install editors (which writes to AppData), download the official from the Unity Download Archive . To create a portable installation of Unity, follow