I wonder if this also explains something with TikTok. If you want to respond to video, you can use a feature called Duet, and this places the original video an

I wonder if this also explains something with TikTok. If you want to respond to video, you can use a feature called Duet, and this places the original video and your video side by side. But, to my surprise, it places the original video on the right and the response video on the left. TikTok was apparently launched in China before going international. Maybe to a Chinese audience, this layout is more natural?