Nvidia flex what are licensing terms?

I have question… Which license applies for nvidia flex if i want to use it commercially in unreal engine and final product is redered in unreal. The EULA for gameworks or EULA for UE ? Because flex is downloaded from unreals git hub if i understand correctly. And un the Nvidia site there is EULA for gameworks and on git hub unreals EULA.

Can you point me to the UE Github folder where you see Nvidia Flex?

https://github.com/NvRTX/UnrealEngine Here from Nvidia Developers site.