Hello @georgerarnold,
Greetings from tagembed.com
Please schedule a call with our team for real-time support : https://calendly.com/tagembed/15min
If you are an admin of the Facebook page, we can simply fetch the posts and display Facebook feeds on your website using tagembed.
We are sorry for the late response, as we are not much active on the Squarespace forum.
Kind Regards,
Tagembed Team