where to for how the xfinity email filters work? Redirect? Then what?

Hello,

On this page:

https://www.xfinity.com/xfinityassistant/

I entered this question:

what does redirect do?

and I got this answer:

I can tell you about some special discounts available to Xfinity customers.

If you're looking for info on the federal government's Affordable Connectivity Program, select the button below

The information found here:

https://www.xfinity.com/support/articles/spam-filters-and-email-blocking-new-experience

Is incomplete. For example, there is no forward but there is a redirect. What happens after I redirect?

Is there a page different than above that explains xfinity's filters?

Thx.