I can‘t understand why it wouldn’t default to match the content’s frame rate. How can anyone watch content with a frame rate that doesn‘t match (or is a multiple of) the source material? Maybe modern TVs can hide those issues with interpolation, but I wonder how this isn’t a bigger and more widely discussed topic. It‘s my understanding that the Apple TV even handles this better than other devices, which sometimes simply don‘t seem to bother to offer this option at all.

Before I turned that on, watching BBC documentaries in 25 FPS the judder was very noticeable on panning shots. Definitely worth enabling if your device supports it.