Comment by YetAnotherNick
2 days ago
Meta added it in "<meta>" tag(no pun intended) intended for search engine. And some other app crawled it and displayed it in main text. Not defending Meta but the text is not visible in instagram or any other Meta app.
It’s the OpenGraph description metadata (“og:description”, see https://ogp.me/ )
Many apps, like Slack and LinkedIn, use it to display a link card with a description.
og:description is exactly the meta tag to use for link descriptions in embeds. Not all meta tags are only for search engines. The app acted correctly here.
If og:description is used in the app, the app shouldn't just show append it to main text without any way to differentiate.