So you want me to terminal to find something the latest i've downloaded in my folder? should just be named correctly, professionally.
Personally, I think you should already have your downloads sorted by date, not alphabetically. No matter what the file is called, you can always just assume it's the first/last file in your downloads. I agree the filename should be changed though: latest.zip seems like something you send your friends to give a proof of concept.
The first thing I always do on a new mac is change the downloads folder on the dock to sort by date added. It makes further customization and downloads much easier.