With the release of NVIDIA's latest driver update, spatial upscaling is added into both GeForce Experience and the NVIDIA Control Panel. The six-tap upscaling algorithm looks to be a more direct competitor to FSR than DLSS, and driver-level support makes it possible to enable in any game
https://www.notebookcheck.net/NVIDIA-releases-a-six-tap-spatial-upscaling-alternative-to-AMD-s-FSR-enabled-at-the-driver-level-and-compatible-with-a-much-wider-range-of-games-through-the-GeForce-Experience-overlay.579588.0.html