Which type of flow involves user interaction typically through forms?

The type of flow that involves user interaction typically through forms is a screen flow. Screen flows are designed specifically for scenarios where users need to input data or make choices as part of a guided process. These flows display screens where users can enter information and navigate through a predefined path that leads them towards completing a task, making it very user-centric.

In contrast, autolaunched flows operate in the background without any user intervention; they are triggered by events or processes and do not require any form input from users. Record-triggered flows automatically execute when records are created or updated in Salesforce, again functioning without direct user participation. An approval process, while it may involve some user decisions, does not utilize a flow in the way that screen flows do, as it is a distinct mechanism specifically focused on managing approval steps rather than providing a guided user interface for data entry and interaction.

Thus, screen flows are uniquely suited for scenarios where direct user input through forms is essential.