I’m completely confused by what you write, because it seems back-to-front. You seem to be speaking of platforms with overlay scrollbars that are invisible until

I’m completely confused by what you write, because it seems back-to-front. You seem to be speaking of platforms with overlay scrollbars that are invisible until you try scrolling; how does `overflow: scroll` behave differently from `overflow: auto` on such platforms? I would expect it to either be no different, or possibly to briefly show a completely misleading scrollbar briefly when the content appears. I think I must be missing something. Can you explain more what you mean?