I looked through the code to try to pick out what function in the decrapifier is actually removing JumpStart so I could just take that bit of code.
With that said, I gave it a try to see what would happen. All I know is computers act funny after I run that script so I don't run that script anymore. It pins stuff to the start menu that have no business being on the start menu and it does other strange stuff I can't remember now. I find it does weird things to the computers I run it on. If you have any OEM equipment (Dell, Lenovo, HP) running the factory image you will notice you do not have permissions to delete the C:\Program Files\WindowsApps folder or anything in it. In my test it removed a test folder where i removed my permissions from, but I don't have an HP to test it like you can. But I'm not deploying an untested script. But I know that when I deploy scripts with Intune they run as the systemuser. I don't know how to test scripts as system user. I'm thinking the remove-item would work if the script ran as SYSTEMUSER. As such, if you want to delete the WindowsApps folder. UWP apps can be installed or moved to any drive on your system. I tried something similar before where I used Get-AppxPackage *JumpStart* | Remove-AppxPackage and it also did not work. The WindowsApps folder is one such folder.