Any GPU can use FSR 3 features if they able to launch game. It doesn't mean it will "good" experince. Frame Generation requires some of GPU power running algorithms. Even you can able to enable frame generation in low-end hardware due to extra GPU power requirement exceeds low-end GPU's so it will decreases your FPS even lower than native.
Your GPU should give consistent and enough frame times for "good" experince. You should natively get at least 40-50 FPS for "smooth" gameplay, for best performance you should get at least 60 FPS.