If you need to share or transfer files between Linux machines, you have plenty of options. Here are some you might not have considered.

I have several volumes that I want to present to the OS as mount points (no reason other than potentially running out of drive letters depending on if/how this media agent expands). I could simply ...

Windows 10 now allows you to mount physical disks formatted using the Linux ext4 filesystem in the Windows Subsystem for Linux 2.