Every frame is technically fake, even rastered frames. Hardware Unboxed and DF covered this ages ago but people seem to have forgotten lol.
Anyway, we now come to a time where frame gen latency is even lower than before (with the extra help of the new Reflex 2 tech) so the only downside for framegen at a technical level has been reduced, Ray Reconstruction is now 40% odd more efficient, DLSS upscaling is now 40% odd more efficient by ditching CNN and using a Transport system instead, and both are also higher fidelity. All pros really that all RTX card owners can enjoy.