[5.1.1] Unity supports ALL PlayStation Controllers, why can't Unreal's Enhanced Input?

Correct me if I’m wrong, but Windows doesn’t actually support the Sony controllers either, does it? I use a third party unsigned driver to connect my Dualshock 4 to my PC; and ftr, it works just fine in UE (at least it did the last time I needed to set up a 3rd person controller)…