Drop Down Default Selection

I have a drop down that is set to provide a list of options from a collection.

I changed the default value to the current users record in the collection (there’s a relationship already set up and it works).

When the page with the drop down loads, the default is at the top of the list when the drop down is selected but I wanted that default value to already be selected and displayed without a user having to do anything.

Is there a way to achieve this or did I just misunderstand what “default value” means for the drop down field?