Cookies and Tracking (GDPR)
In fact, the Spotlight feed is designed and generated purely by Spotlight without any Instagram or Facebook code or tracking being involved.
Instagram and Facebook will read their own cookies when you are connecting your account to Spotlight. This is how they can detect if you are already logged in to the relative Instagram or Facebook account.
However, these cookies are only used in the connection window (popup). They are not used on the admin side nor on the public-facing side of your website.