I have recently noticed that both Youtube and Reddit use this form of front-end rendering, where a template is pre-rendered, while the page is fetching data. Once the data has been fetched, the components get populated. I am interested in how someone incorporates this type of design into their front-end, and how I can go about coding this.
Is this a type of Micro-front end (I am not very familiar with it)?
Is this rendering a template from atomic design before they get populated with objects?
Youtube loading videos
Reddit loading posts