If you're using https://newsboat.org, you can add a filter (killfile) to remedy this:

  ignore-article "*" "title =~ \"#shorts\""
  ignore-article "*" "content =~ \"#shorts\""

Not perfect though, since it only ignores videos with hashtag '#shorts' in title or description and not all shorts includes that hashtag.

If you're possibly using Feedbin, I've been successfully using Feedbin's "Actions" to select for Shorts with the search field media_duration and then marking those items unter 60 seconds as read. That feature and the search syntax are a little bit hidden, but are worth it:

https://feedbin.com/help/search-syntax/

Does this still work? This post from a couple weeks ago was saying they were down. Was this a temporary outage, not a removal?

https://news.ycombinator.com/item?id=39179446

I like the idea of moving some of the channels I actually like to RSS.

Best as I can tell there is no difference between Shorts and full length videos when coming from the RSS feed. It even loads in the full player on the website when following the url.

The best I've come up with is to use youtube-dl to get the duration and if it's shorter then 60s drop the item.