No I don't have an iphone, and yes, tested using an S21 ultra and my old Note 20.Are you testing the difference on the same Android phone? Setting it to 60hz and scrolling up and down and then change setting to 120hz and doing the same, all on an Android phone not a iPhone?
Because 60hz on an iPhone feels significantly smoother than 60hz on Android. It's the way the OS works totally different and really can't compare them.
Android 120hz vs 60hz iPhone looks very different too, from what I've seen on video.