The Classic FullProf Suite distribution has been simplified: now the new Intel Fortran compiler (ifx) is exclusively used. Users are encouraged to report any issues so that the corresponding executable can be fixed promptly. The program PANDA may not work properly in the Linux distributions for the reasons stated above.
There is also available a tool for automated Rietveld analysis of powder diffraction patterns using FullProf as refinement engine, the FullProfApp. This tool requires a previous installation of the Classic FullProf Suite and it is designed to easily handle large chunks of diffraction data generated by high-throughput screening (HTS) experiments as well as by in situ and operando studies at large user facilities such as Synchrotron and Neutron sources.
Installation instructions for the FullProf Suite: https://fpsuite-doc.readthedocs.io/en/latest/pages/installation/installation.html
Installation instructions for the FullProfApp: https://fullprofapp.readthedocs.io/en/stable/
What is new in the classic FullProf Suite: https://www2017.ill.eu/sites/fullprof/Old_FP/php/FullProf_News.htm