My friend got one of those new swanky Xiaomi phones that can do 120 hz refresh rate. The problem is that YouTube doesn't support anything above 60 and I couldn't find anything on major torrent sites. Maybe this stuff is unlabeled? Hell, even 60 hz stuff is very sparsely seeded outside of 【Human wife love fellow No. 3 Exposed by taking a duck boat at a park on summer vacation! Shame shy cum inside while showing the movie taken SEX】.
Edit: Also, as long as we are talking about high frame rate video, check out 60 fps YouTube videos from Gemini Man, which was filmed in 120 fps. Shit's weird.
I remember reading some person who worked on tv set explaining how production moving to HD made their job harder. Suddenly all old trusty hacks didn't because now the audience would be able to see every tiny detail on screen.
I reckon HFR is sorta the same but with motion. In 30 fps as long as something is moving in shot you can't see detail on it. Like if you pan fast enough no one can see that this part of your set is held together with tape or whatever. It also gives you leeway with action and stunts and what not.