We need frame gen cause you can't achieve high framerates without it. Modern monitors can get up to 120-240 or even 360hz and you can't get there with high settings on any AAA game no matter the hardware. You can focus on real frames as much as you like you are not getting that many fps, even if you had twice the horsepower of a 5090 at your disposal. You never could btw, even when there was no frame gen and they supposedly focused on rendered frames, even high end gpus struggled to hit 60-100 fps in AAA games at max settings. Take the 1080ti review from this very site, even at its prime, with games older than the hardware, lots of games were sitting between 60-90 fps at 1440p, before even touching 4k. At 4k you drop to half, usually sitting between 30-60!
