If the tooling in the preceding section seemed like a bit much for a single project, don't sweat it. Trying to leverage every possible React tool at the same time is always a mistake. Address one problem at a time, starting with the essentials. As your project moves forward, add in the optional tools to expand your toolset.
There are some React tools that you simply can't live without. For example, browsers don't understand JSX syntax, so this needs to be compiled to JavaScript. As you write code, you'll want to lint it to make sure that basic mistakes aren't missed, and you'll want to run your unit tests. If you try hard enough, you might be able to get by without these tools. But that's the thing—you would spend more effort not using a given tool than to simply embrace it.
As a starting point, find the minimal set of React tools that allow you to make progress. Once your progress noticeably slows, it's time to consider introducing additional tools.
Optional tools are things that you might not get any real value from. For example, you probably won't reap enormous benefits from using Flow to check for type safety or Storybook to isolate component development at the very beginning of a project.
The key thing to remember is that any React tool is optional, and no decisions are permanent. You can always bring in Flow later on, and you can always ditch Storybook if isolated component development isn't your thing.