It’s hardly possible to play like this
As you know, Frame Generation technology from DLSS 3 is available only on GeForce RTX 40 video cards. Now technically it can be launched on older adapters, which is what the author of the ALG46 channel did.
He used a GeForce RTX 3060 and the DLSS FG DLL 1.0.1 file, which allowed him to bypass the ban. True, this only works in the game Portal Prelude RTX.
GeForce RTX 30 can be taught to complete frames like the RTX 40.
This does not matter for the experiment, and the experiment was carried out. Performance, as expected, has increased, but it has become virtually impossible to play the game.
As you can see, the picture jerks as if the frames are rendered unevenly. Theoretically, you can play like this, but it is unlikely to be enjoyable.
It is not yet clear whether this problem can be circumvented. Let us remember that Nvidia itself initially said that technically FG can work on all RTX video cards, but certain changes were made to the Ada Lovelace architecture, which allows the technology to work normally.