I'm trying to create a segment of behavior between new and returning users within a funnel. Based on this article: https://help.mixpanel.com/hc/en-us/articles/360001355506-Tracking-First-Time-Users you should register it as a super property or submit it per event.
However, it seems there is an assumption that user is registered like in an app rather than an ecommerce site or blog because the article depends on there being one entry point in the journey. And, it doesn't really explain how to actually detect if a user is new or returning to assign the "First Time" property they have in the article.
Anyone have any ideas on how to do track this?