It does not guarantee any kind of automated access (and in fact, only at least once per year do you have free access), but in theory lets you retrieve all data associated to your person from any company (and allows you to correct wrong information, respectively require deletion of data that is no longer needed).
If you try to apply it to Facebook, they'll however just redirect you to their data download tool (which only gives you access to a a limited subset of the data). It lacks some enforcement, unfortunately.
It does not guarantee any kind of automated access (and in fact, only at least once per year do you have free access), but in theory lets you retrieve all data associated to your person from any company (and allows you to correct wrong information, respectively require deletion of data that is no longer needed).
If you try to apply it to Facebook, they'll however just redirect you to their data download tool (which only gives you access to a a limited subset of the data). It lacks some enforcement, unfortunately.