I've reading:
https://gdpr-info.eu/art-20-gdpr/
It says:
The data subject shall have the right to receive the personal data concerning him or her, which he or she has provided to a controller, in a structured, commonly used and machine-readable format and have the right to transmit those data to another controller without hindrance from the controller to which the personal data have been provided..
I don't understand this. It talks about "personal data concerning him". What does that mean, not all data?
I'm looking for a directive that says we must be able to get ALL data in a portable form so that we can transfer it.