Good afternoon, David.
Shrew has the option to export the configuration. As you have already validated it on Windows 10, just export your configuration file so it is imported into the Linux Mint Shrew.
In relation to the installation of Shrew on Linux it will be necessary to resort to the community.
However, because it is an old package (last release was made available more than 10 years ago), some lib conflicts usually occur, which sometimes impairs the functioning of other programs.
Another option would be the use of the VPN SSL (Openvpn), which already comes on Linux Mint as a native configuration option of the system, which prevents problems of lib conflicts.
Att,
