So the new Pro phones are capable of going down to 1 Hz refresh rate. I don’t know if the app has to opt into that but I don’t think so. My guess/hope would be that if you were not changing the image it would just slow down automatically, so perhaps things like the Kindle app would benefit without a change?

They didn’t have to manually opt into the 120 Hz smooth scrolling.

It’s still an emissive screen, but it’s better than an emissive screen that is refreshing 60 times a second.