Any chance to get these things back to work after the Kodi 18 based update?

A new encounter when connecting via SMB:
Other than with SSH previously, it seems to me that I cannot browse all folders and files.
For instance: /user/share
Where is it?
Even when I try the Windows search it cannot be found

System folder are not part of the default Samba Share and it would be also only partly useful to add them as most of them are owned by root and shouldn’t be changed via samba.

If you want the full SSH/SFTP experience you would need Total Commander or Filezilla