Files existed, on another drive, but steam didn’t know about them. With new faster download speeds I saved bandwidth not so sure about time. It expected HD to have enough space even though files were already there. So I needed to make space available that wasn’t needed. Then Steam went through lengthy discover, validate, verify phases. I didn’t time it but probably took over an hour.
Create desktop shortcut within Steam didn’t work. So right click on desktop…Create a new launcher here. Unlike creating a link this gives you the option of adding it to your menu.