What are the limitations in the new Facebook API?

Question

Themes

According to information from industry sources, the impression is that Facebook closed absolutely all the useful features of the platform, which recently actively invited third-party application developers
https://roem.ru/29-04-2015/194249/end-of-apis/
what did these restrictions affect? Is the application authorized by the user really
unable to even get the list of his friends (other than those who are already using this application)?

Answer 1

https://draculatheme.com/

Answer 2

What exactly are these restrictions? Is the application authorized by the user really
unable to even get the list of his friends (other than those who are already using this application)?
Even more interesting, you can't even get the real id of the current user. Instead, a unique id is generated for the player for each application and used for identification. Same for friends. (this happens for new users)
You can call me/taggable_friends or me/invitable_friends to get a list of all friends. But instead of their id, you will receive one-time tokens, which you can use to send notifications about an invitation to the game.