"Shared" in reviewer invitation

Maybe I missed it from the docs, but what does the share option actually do?
Screenshot 2024-02-08 115649

Hi @proal, reviewers who submit a review with ‘Shared’ enabled (selected) will be able to access each other’s reviews (read-only) from the Review page. All other reviwers submissions that have been ‘Shared’ are displayed under the ‘Other Reviews’ tab - see an example in the screenshot below;