This is in an awesome way on how to have multiple builds in Kodi for your PC.
If you want to do the same on an android device then follow this link: https://spartanpixel.net/video/how-to-have-multiple-builds-in-kodi-the-best-way-to-do-it/
The location of your Kodi in your PC is: C:\Users\Your USER NAME\AppData\Roaming\
In the Roaming folder just rename the Kodi folder to something else, in my case I renamed it to Kodi Royalist.
Launch Kodi again and you shall have a fresh copy