Sharing on social media is one of the essential points of a successful online store and a great way to promote your business, products, and services. There are plenty of platforms you could have shared your page on.
You should optimize your Magento 2 Social Meta Tags and that is what Magento 2 Open Graph Extension was created for. It works if sharing on Facebook, Twitter, LinkedIn, Pinterest, Instagram, Hangouts, Skype, Viber, Telegram.