The real benefit of super high refresh rates is the decrease in latency for input. At lower rates the lag between input and the next frame is extremely apparent, above about ~144hz it’s much less noticable.

The other side effect of running at high fps is that when heavy processing occurs and there are frame time lags they’re much less noticable because the minimum fps is still very high. I usually tell people not to pay attention to the maximum fps rather look at the average and min.