I've always thought this feature might have more potential if more modern deep-learning tech was baked into the video and not just dumb frame interpolation.

I can imagine that there would be a potential to generate interpolated frames that intelligently make fast-moving scenes more understandable while leaving slow-moving scenes more or less at their intended 24 FPS.

Many action movies, especially with close hand-to-hand combat in tight spaces, are difficult to understand visually because 24 FPS just doesn't quite catch the movements.

Depends on the TV. I prefer it off, but on my fancy OLED TV, there is too much "judder" without it on.