What is happening here. Scrolling without moving the page?

What do you call this when you scroll, but the page doesn't move up and down, rather it's like you're scrolling through an events or something. What is this concept called? How would it be stored in a database?

			https://www.nytimes.com/interactive/2021/sports/olympics/adam-ondra-climbing.html

Here is another example created with Vue. Where could I find how to make this in the Vue documentation?

		https://www.tiktok.com/business/es