What’s the equivalent to a ‘visual site map’ or a ‘product flow’

Basically, if user flows and task flows outline forms of interaction between screens (by tree flows or single linear flows), what is the mapping of all screens (and interactions) that exist in the product? A site map?

I've often found site maps are more under the realm of information architecture, so they might not necessarily include interactions or visual fidelity?

Is creating this mapping useless due to its ambiguity? Task flows serve to outline how a user would perform a task, site maps (as a method for information architecture) are based upon user's mental models, so is there any reason to construct a 'product flow'?