Reminder to link to abstracts, rather than directly to PDF: https://arxiv.org/abs/2004.04733 .
1. As you say, to see more information about where the paper comes from.
2. It's easy to get from the abstract page to the PDF, but not vice versa.
Personally, I also think it's good for people to get into the habit of linking to a text description of data-heavy resources rather than directly to the resources. PDFs aren't that data-heavy, but there are plenty of other things that are that could do with a text landing page, and I think it's good to get in that habit.