A: The TC code uses 3rd party cookies to fingerprint the visitor. As 3rd party cookies begin to get phased out, we'll be relying on the script to track in session only vs. repeat sessions.

This will impact funnels where you have multiple entry points, e.g., you have an email campaign that brings them back to a later step in the funnel, but shouldn't have an impact on any of the other tools since they all happen in session.