I'm looking if there are any examples of this as I want to draw a customer journey for a 2 sided marketplace where there's overlap between these 2 types of users. Think host/traveler for airbnb or rider/driver for lyft.
I can always design each individually and stack them to then call out where there are interesting moments/overlap between the two but was looking to see if a combo has been attempted before.
Yes, you can diagram these journeys in many different ways, and I have done this in the past although often the diagram becomes quite complex and the story gets lost sometimes.
There are a number of different approaches that I use, some of which might apply to your scenario/situation:
And you can probably combine them in different ways or formats if you need additional interactions or complexities for your journeys.