This has great discoverability for other eng teams ime. Duplication of components across multiple product teams is a drag on velocity and a major pain when you want to update brand/design across the board. In a previous role, we spun up a Storybook with the few dozen atomic React + pure HTML components, shopped it around the relevant teams. Saw great uptake for centralizing components, and a few teams did storybook-driven development for their more complex UIs. Can recommend.

Also very useful for non technical stakeholders (design, product, etc) to test UIs in isolation.