You can share folders and files directly from Thru as a direct link
Links to Folders can be shared only with other users of the site that have permissions to access the folder
Links to Files can be shared with and without protection and shared externally.
When a Public link is created, anyone with this link will be able to download the file
When a Protected link is created, Only registered users can download the file.
In other words, recipients of a protected link must self-register a user account and create a password in order to access the protected link.