If one uses the "encrypted home" feature of Ubuntu (that it is not exactly an encrypted partition, as far as I can understand ubuntu encrypts single files but it makes "/home" folder appear as a device), TeamDrive does not work ("Type of volume is unknown or not supported")
I have found a workaround: one has to create a folder outside the /home directory, then do something like "mount -o bind /home/whatever/Documents [FolderOutsideHome]/Documents"
TeamDrive will be able to sync [FolderOutsideHome]/Documents
However, TeamDrive should support such Ubuntu feature without workarounds, because Ubuntu is one of the main Linux distros
Regards,
Alberto