Retargeting by IP Address

I am new to using Mautic, but from what I know Mautic captures the IP Address of anonymous visitors to my site. How do I go about retargeting them? How do I set up Facebook Pixel?

Facebook Pixel setup is Settings-Config-Tracking Settings

You can create a segment for your anonymous visitors and show a focus item asking them to visit a link or submit a form

Sweet, I assume you use a filter on segment to create one for anonymous visitors?

How will this help with retargeting? Can FB retarget based on IP?