You don't have to know what Hz is to see that scrolling on some devices is smooth and on other (coug..Apple) devices is choppy. 60Hz feels like a decade old phone.
Yeah I wanted to love the form factor of the Mini and thought the 60 he wouldn't be an issue but was reminded any time I used the device.
Actually surprised to learn Apple did the OLED swap and didn't use the opportunity to bump it up at least to 90 hz like the OLED Steam Deck.
As someone who occasionally browses Hacker News on a Kindle e-Reader, having a low refresh rate really doesn't matter.
If your phone is choppy when scrolling a list on a 60 Hz display, it's not going to scroll smoothly on a 120Hz display.