They are also seeing the results will be far more varied and scrolling down will likely give you a result that you are looking for, and the traditional way of looking with the top result, being the one that you wanted may not be the case anymore
I think they are maybe trying to replicate the TikTok experience when looking for a result, you will end up scrolling different content relative to your search keyword
All of this will benefit content creators. If you have an ability to create video content, this will give you a competitive edge.