Or more simply: The internet is just the network. The web is one of the handful of "apps" that run directly using that network. It just also happens to be able to run apps of its own these days and is a pretty "killer" one at that :)
(Edit: please disregard the wrong link that summoned the bot below. It's been fixed. And I do not have a Balatro problem...)
Material Files has good SFTP support.