Social Media Posts Integrate into Business Profiles
You can connect one account per social media platform to your Google Business Profile. The list of social media accounts are LinkedIn, Facebook, Instagram, Pinterest, TikTok, X (formerly known as Twitter), and YouTube. The idea is to give customers a better sense of a business's online activity and engagement, noting that specific formats are important so that the link correctly displays.
A Facebook link should include, “https://www.facebook.com/{username}” and an Instagram link should loo like the following text, “https://www.instagram.com/{username}.”
To add, edit, or remove social media links simply pull up your Business Profile, click on "Edit Profile," click on "Business Information," and then hit "Contact." Finally, you can select social links to edit, add, or remove. Google Help page explains that, for businesses that associate their social media links with their GBP, social posts may be automatically included in their Google Posts, displaying by default.