No means to keep original date for files and folder

[cbertelli]

This is really mandatory for any storage system.

[rcfa]

Absolutely! Even more so, it’s in the interest of needles traffic avoidance. If there’s no way to tell if a file has changed, it needs to be diff-ed, or simply re-uploaded and overwritten as a precaution.
To minimize network traffic and optimize overall performance, exact file size, and exact creation and modification time stamps are essential.

[cbertelli]

Handling metadata for a service that encrypts data on the client side, like Internxt, is very important and could become a nightmare. I think they should store the checksum of the unencrypted file before upload to compare it, otherwise the differences should be computed locally, after transferring the file back again and decrypting it.
@larryrider (Internxt) commented a pull request by @StarHack (/rclone/rclone/pull/8556) stating that the API/backend supports metadata and the web interface does not, but the native interface for rclone does. Unfortunately I cannot confirm this. I suppose that the command line client, made for the Internxt API, would provide the same capabilities and it does not.
I hope they will consistently provide metadata handling for every interface.

[CrispStrobe]

btw (for others reading this here) i made a cli in python (https://github.com/CrispStrobe/internxt-python) and in dart (https://github.com/CrispStrobe/internxt-dart) which handles this (though directory timestamps can only be set on upload with current api). the official node cli could be made to handle this similarly of course.