YouTube’s TikTok competitor known as YouTube Shorts is today launching a new feature, similar to TikTok’s Stitch, that will allow creators to incorporate a short video segment from another user’s YouTube video or Shorts video when creating new Shorts content. The feature is an expansion of YouTube Shorts’ existing “remix” functionality which had previously allowed creators to sample audio from other videos into their own Shorts posts.
https://techcrunch.com/2022/04/14/all-public-videos-on-youtube-are-now-eligible-to-be-remixed-into-youtube-shorts-unless-creators-opt-out/