Yes, Fortinet provides tools packages for Windows, macOS, and Linux, though the Configurator tool is most robust on the Windows platform.
Look for a file named FortiClientTools_x.x.x.xxxx.zip . Click the HTTPS link next to it to start the download. 2. Common Utilities in the Tools Package
If you only require the basic VPN client without administrative tools, these are available through a simpler process: Fortinet Product Downloads | Support