How to display to the user a list of records not yet viewed by him?

Question

WordPress

Maybe there is a ready-made solution, some kind of plugin? Or what table fields can be used for this?

Answer 1

I didn't see the finished solution. But this is easy to implement, if your users are not authorized, then use cookies, write the id of the posts that the user has opened. And the next time the list is shown, check cookies through php.
If authorized - can be stored in the database.