Hi René,
That is not possible currently, but it would also be difficult to determine if the user should actually be able to download the file this way. If it's hidden in the Cardlist, then normally that means the user cannot see the field and it's value; but in this case the user would still see it.
Maybe in the future we could make an extended property that can hide certain domain for example, or a model extension for it but for now it is working as intended. Feel free to create an idea for it.
@René W You would get my vote if you raise an Idea on this one. We encounter the same behavior for email addresses and phone numbers for example.
It could simply be standard behavior that the Universal GUI hides the fields on the Card list which are also shown as links behind the 3 dots. With one additional requirement though: it should be possible to use the copy function on the links (this doesn't work on iOS at the moment).