It is unclear why this happened
A week ago, we learned that the revolutionary DualSense gamepad doesn’t work with PlayStation 4, but it works great with Android devices.
Revolutionary DualSense controller doesn’t work with PlayStation 4, but miraculously works with PlayStation 3
It turned out that not only with them. DualSense has been successfully connected to the Nintendo Switch and even, funnily enough, to the PlayStation 3!
It is not very clear why the gamepad works with PS3, but does not work with PS4, although in the first case it is still a matter of curiosity – hardly anyone will buy a DualSense for the sake of playing the PlayStation 3.
As for how the new controller works with the PS4, it is possible that later Sony will release an update for this console that will bring it support for the new controller.