Yo. This new input system will probably be the death of me.
I know for sure I kind of removed explicit DualShock support. I say kind of because in the editor, my XB1 controller was recognised as both XInput and generic at the same time, leading to incorrect behaviour, so I removed explicit references to XInput and DualShock assuming the same would happen for the latter. I'll have to get it all checked out in the newer versions of Unity where the input system is in its stable release.
I also made a mistake in the tutorial, I absentmindedly wrote "Dash + Trick" when it's in fact Dash + Tag to recenter the camera (which should correspond to L2+R2).