YouTube will now let you filter Shorts out of search results
via support.google.com
Short excerpt below. Read at the original source.
As part of a few changes to its search filters, YouTube is going to allow you to search specifically for Shorts or longform videos. Right now, a filter-less search shows a mix of longform and short form videos, which can be annoying if you just want to see videos in one format or the other. […]