put it another way then maybe, that special ftp version will also work with a normal FTP server
and will work with a FTPS server even if that setting is not set, as its setup to work with a FTPS server (but not a SFTP server…the normal FTP version should work with that, if that setting is set)
So, SFTP to all server options is still a not resolved and open topic, as I understood?
it looks like it does not work for all server options, no