i don't think there is a page on x that just gives you a login wall that a normal non-logged in user would go to. if you link to something like a tweet or a profile page it shows you them. these services are for scraping.
When one of those features is being able to see the most recent tweets from an account, that's asinine.
In other words: If you link to a profile page, X doesn't properly show you. It gives you a random selection of popular tweets that person has made, often several years old.