The article role indicates a section of a page that could easily stand on its own on a page, in a document, or on a website, is implicit when using the tag.
This role indicates a section of a page that could easily stand on its own on a page, in a document, or on a website. It is usually set on related content items such as comments, forum posts, newspaper articles or other items grouped together on one page. It can be added to generic elements like to convey this role, for example:
Heading
Content...
Instead of using this role, it’s preferrable to use the native element like this:
Heading
Content...
Learn more:
MDN: ARIA article role