You can make simple edits to Dropbox links to share files the way you want. You can also append the link URL to force the content to download or render in your browser.
How to force a Dropbox link to download
To force a browser to download the contents of a link rather than display them, you can use "dl=1" as a query parameter in your URL. For example:
https://www.dropbox.com/s/a1b2c3d4ef5gh6/example.docx?dl=1
or
https://www.dropbox.com/scl/fi/<token.a>/file.jpg?rlkey=<token.b>&dl=1