Who actually uses frame gen?
I use DLSS FG in almost every game because it has no noticeable downsides, while it considerably improves my experience. I see a huge improvement in motion clarity, and the games feel smoother. DLSS FGx2 makes huge difference especially in very demanding UE5 games.
Native 4K TAA 87fps vs 172fps with DLSSQ + FGx2
People who complain about FG lag tend to exaggerate, or perhaps they use a much inferior AMD FSR FG/LSFG. Even if people use DLSS FG it's still possible they didnt set driver settings correctly (ultra low latency has to be turned on, and you need to turn off ingame Vsync and forcr Vsync in the driver settings). You also need to change the RTSS limiter from the default 'Async' mode to 'Reflex' to achieve the lowest possible lag. Most RTX 40/50 users don't even know that.
I set everything up correctly and measured a difference of just 2 ms in the best-case scenario (cyberpunk), and up to 10 ms in the worst (alan wake 2, Indiana Jones).
70fps, 31.3ms lag (the LDAT measurement is shown in the top right-hand corner) without FG
124fps, 33.8ms lag with DLSS FGx2
There's only a 2ms difference. That's literally placebo territory. Dude, 33.8ms lag still feels perfectly responsive. For comparison, PS5 games such as God of War (2018) have lag of 112ms, yet people here on NeoGAF aren't complaining because the game was still playable with a gamepad.
Games with FG are incredibly responsive on my PC and because I get almost twice the frame rate, my eyes see a much smoother picture and can track movement much more easily, which makes it easier to aim. Base framerare (without FG) in cybetpunk at 70fps isnt more responsive and more playable to me. DLSS FG at 124fps feels more responsive to me even though lag increased a little bit (2ms). That generated 124 fps is only less responsive compared to a true 124 fps native framerate.... and not a lot

. If I get between 80-120fps generated frames, sure I can feel some small difference compared to real 80-120fps, but once generated framerate is in 160-220fps territory I cant even tell a difference between FG and native framerate.
I even tried testing DLSS FGx2 at a base of 30 fps, so I played at generated 60 fps. My experience was definitely closer to 60 fps than 30 fps. The improvement in motion smoothness and sharpness was significant, and I could aim much more easily too. At 30 fps, especially on an OLED screen, you can clearly see when the frames jump during slow camera panning. DLSS FGx2 fixes that. Of course, at such a low framerate, DLSS FGx2 motion artefacts become more apparent. However, that's much less noticeable than the 30fps judder, which is why so many people turn on motion interpolation on their TVs.
If I still played on consoles, I would definitely want the PS6 to support frame generation (FG), assuming the PS6's FG can offer the same experience as DLSS FG.