You are wrong, “DLSS 3” is even the official term used by nVIDIA itself for the combination of ALL currently available AI enhancement techniques from nVIDIA: Introducing NVIDIA DLSS 3 | GeForce News | NVIDIA
Means, while yes, frame generation is per se not related to the term DLSS (Deep Learning Super Sampling), it is still included into the DLSS 3 Package (along with nVIDIA Reflex and DLSS). You can howver use it independent of the image scaling parts of DLSS 3, as you wrote, and this leads to some confusion here and there…