Name

The Name field when creating a new send allows you to specify a meaningful description for the send.

File send name field

This is not shown to the recipient(s) of the send link, and is visible only to you as the creator of the send link.

The description of each send is shown in the Sent files page, and is visible on any device you are signed in to. It can also be updated by clicking the Edit button on the send's details page.