Do Thumbnails Matter on Shorts?

Do thumbnails matter on shorts? I'd say not as much as long form. Most of those th most of those thumbnails are never seen in the feed, right? And so, you know, there's a few places people get into shorts. The shelf is going to be like the vertical screen grab of the short moment. But then once you tap in the shorts feed is sort of like this infinite feed of videos and you never see a thumbnail again.