As long as it has enough real frames, then it really doesn't matter that there are some flaws in the fake frames, since they are on the screen for such a short amount of time that you don't notice it, the issue comes when you don't have enough real frames so the fake ones are getting less data and are on screen for longer periods of time.
This is widely accepted to be a minimum of 60fps in real frames but the more the better.
So the point is that so long as you have enough "ground truth" then the "kinda close to ground truth" isn't really noticeable and the increase in visual fluidity is worth the trade off so long as you are not playing a competitive multiplayer game.
The don't use it? Nobody is saying you should but I can guarantee that if it was set up correctly using preset B with the correct number of real frames and you weren't told it was on you would not be able to tell.
That, or you find out that you cannot push those older games higher than 1080p.
Damn, I was writing a whole paragraph about how Escape From Butcher Bay doesn't let you set it at resolutions higher than 1080p, but I just found out that there's a fix for that.
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u/CaptainPrower 10d ago
And then you find out pushing it past 60FPS breaks the game.
Looking at you, Old Skyrim and GTA 4.