What is an activity the customer or partner is responsible for in RISE with SAP S/4HANA Cloud, private edition?

What are prerequisites if you want to transfer data with the Migrate Your Data - Migration Cockpit app using a separate SAP HANA database in RISE with SAP S/4HANA Cloud? Note: There are 2 correct answers to this question.

According to the General Data Protection Regulation (GDPR) laws, when are SAP customers considered data controllers?

How can you check the status of the latest backup for your SAP S/4HANA systems?

Where do you identify new and changed features in the latest release of SAP S/4HANA? Note: There are 2 correct answers to this question.