RDFa og serves as uniform way to recognize articles better by REST for consideration when embedding within containers not predicted at time of generation. Should the container is predetermined as search engine results, then schema.org microdata is nicely-recognized by look for bots. With og presentation is responsibility of container publisher https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html