Not OP, but i suppose you can use custom decorator to wrap components and globalTypes for some customization, like theme selector
https://storybook.js.org/docs/react/essentials/toolbars-and-...
https://storybook.js.org/docs/react/essentials/toolbars-and-...
If I understand correctly, as opposed to loading your components in isolation in Storybook, you're providing them with a context similar to the actual app they're going to exist in?