Interesting. If you have a RTX 2xxx or RTX 3xxx card then you can have frame generation with this small mod:
https://www.nexusmods.com/site/mods/738?tab=description
https://www.youtube.com/watch?v=wxlHq_EuxFU

The mod uses FSR3 to generate the frames. But it does not enforce FSR for upscaling.



Cheers