UGC, or user-generated content, is video made to look and feel native to social media, the kind that doesn't read as a polished brand ad, so it earns real attention and trust. You own the finished video and use it in your own ads and posts. I don't post it to my own account; I create the footage and hand it over.
I bring real, proven experience to this: I already create TikTok Shop affiliate content in exactly this style for my own 13,000-follower account, @the1brightrainbow. This isn't a new skill I'm guessing at, it's an extension of content I already make and that already performs.