Don’t quite get the relevance of TV smoothing here. TV content is fixed camera. You are always moving the camera in VR. This is what makes MR difficult. This is what makes DLSSG not usable as-is.
DLSSG is backward interpolation. This technique is highly incompatible with VR due to latency.
(from my other post about reprojection: Motion Reprojection explained - General Discussion & Interests / Virtual Reality (VR) - Microsoft Flight Simulator Forums)
(and here a reference to the latency of DLSSG: Will DLSS 3.0 be supported in VR msfs? - General Discussion & Interests / Virtual Reality (VR) - Microsoft Flight Simulator Forums)