There has to be some point of diminishing or indeed imperceptible returns.

According to LTT, that's somewhere between 240hz and 500hz.

Does High FPS make you a better gamer? Ft. Shroud (60hz vs 144hz vs 240hz): https://www.youtube.com/watch?v=OX31kZbAXsA

You don't deserve this monitor - does 360hz gaming make a difference?: https://www.youtube.com/watch?v=3iY0figLAwo

I THOUGHT I Wanted This - AW2524H 500Hz Review: https://www.youtube.com/watch?v=Ewo8tt6bgZU

As a side observation, the clickbaitness of the titles seem to have increased with LTT over time.