That is, show specific pages of the Blog. Choose which blog posts to display in a certain section.
I’m not sure I get the full picture. Do you have a reference site you’d like to replicate?
Perhaps something like this? https://gpsites.co/dispatch/
Where there are multiple post listings for different things like Recent posts, Categories and perhaps a listing of specific posts of your choosing?
If that’s the case, you’ll need a plugin.
I’m not exactly sure if Elementor’s free version lets you filter the posts displayed on its Posts widget. GP Premium on the other hand, doesn’t have this functionality.