R&O about products, services, and processes can be related to process performance indicators, and other indicators like customer complaints, customer satisfaction, and returns. These indicators illustrate how well R&O was determined, and effective actions were taken.
R&O about context and interested parties are more about trends in the external environment that can help or hinder performance. For example, in this picture from our webinar about Clause 4:
You can see how internal and external contexts collide with an interested party's expectation to raise risk.
Consider also the following information:
Free webinar on-demand - ISO 9001:2015 clause 4 - Context of the organization, interested parties, and scope -