The global fp-lib-table is in the user’s home folder’s appdata folder, under KiCad settings. Initially it’s copied from the KiCad installation (by default) and reflects the corresponding KiCad official libraries. But it can be changed apart from the libraries, and the libraries can be changed apart from the fp-lib-table.
See Library management in KiCad version 5.
What do you mean by Global file path?