Welcome to the folding support forum.
Mint is a distro listed in the installation Guide and is listed under the Downloads for the software under Debian, Mint and Ubuntu, so is not an unsupported version of Linux. A forum search will show a number of postings on this issue, the current FAHControl depends on an older version of Python than is installed by default with the latest Mint version. There are some workarounds posted on installing the older Python version.
iMac 2.8 i7 12 GB smp8, Mac Pro 2.8 quad 12 GB smp6
MacBook Pro 2.9 i7 8 GB smp3