After claiming the free game from Epic Games, I noticed my PS5 controller was not supported. Only the DC add-on supports the adaptive triggers and haptic feedback on ps5 controller.
Thanks to "ce5himm", I would be able to get DC upgrade for $8.99 (I can't find it on Epic apps, but only add it from a web browser)
I bought a PS5 controller ($66 from JB with a $10 Perk voucher). Haptic feedback and adaptive triggers are natively supported. It felt like a different game.