And why Epic is no longer using Havok like it did in UE2? Is better to use Chaos rather than PhysX in UE5?

Havok had a high licensing cost so was dropped for UE3, though an integration was available for studios that licensed it. UE3 had both a software character movement engine and PhysX for physics objects and vehicles (I think UE2 was the same but with Havok). At the time, PhysX was proving itself to b…