Facebook and Instagram use carousels for their Stories feature. Google uses carousels for News stories and product results. Are they the exception and if so, why? Or are they not aware of the user data?
1. It's primarily mobile, by far.
2. The story is the only thing on the screen and the entire experience is focused on it.
3. You can hold down the story to prevent it from continuing onto the next one for the duration of your hold.