[satvikpendem]

Again, those are for displaying data on a frontend, even if the content itself is server side rendered. Actix and others are made for API servers, ie authentication of users, accessing the database, performing computations, and returning the resultant JSON. You can return HTML too which is what I suspect you're referring to but most people simply use frameworks like Actix or express as a backend API server which connects to a client-side frontend or something like NextJS.