The expand chevron gives me a false expectation of navigate what is new. When I click the expand chevron my brain explodes with expectation of navigation, but it is almost impossible to offer a good enough experience of site navigation on the library, or at least with out rebuilding the whole site and panels functionality on the library. Why would we want that?

Lets just remove the chevron, and send the user directly to the Site. The same as Whatsapp does. You go directly to the Chat!

In conclusion when a click a Library Item, I still want to see what is new on the Site. With one click I should land on the Site Feed.