You can do that on the Boox devices. On their default Neo browser, the volume keys act as PgUp/PgDn, so the screen doesn't refresh when you scroll a few pixels.

You can do that on the Boox devices. On their default Neo browser, the volume keys act as PgUp/PgDn, so the screen doesn't refresh when you scroll a few pixels. I had this feature on the Dolphin Android browser way back in the day.