Would be nice to have but probably not feasable atm.
there are several methods you can use to get like 80% of them out. but not 100% (at least, not in the timewindow till it has to show the results). So that means it'll be an unreliable feature and people will complain it doesn't work well
Youtube's api doesn't return if something is a short or not. iirc.
So the only things you can do is:
- Some of the providers that are used to return a
https://www.youtube.com/shorts/....url, that's an easy one to do
- Some providers do give back a thumbnail that is vertical, so that also allows you to do it
But those aren't bullet proof, for ex: sometimes they bring back a thumbnail which is a 16:9 thumbnail that's just the vertical thumbnail with a blurry version of it in the background to fill a 16:9 image...
