I have to say I am confused by the installation. The installer told me the files would be installed outside the community folder yet all the files appear to be there.
They are not. They are in the Addon Manager\MSFS folder, the installer has only placed a shortcut to it, and they *look* as if they were there, but they aren't. That's how the simulator sees them. Technically, is called a "Junction", which is the correct and safer method that works for whole folders and even across different drives.
I haven't checked my addon manager folder as I have no idea where that is.
It's where you installed it. If you accepted the default, it's in "C:\Program Files (x86)\Addon Manager"