Yes. Out of the 1600 packages, just looking at package names: 227 are related to Jest, 167 are related to Babel, 93 are related to PostCSS, 66 are related to

Yes. Out of the 1600 packages, just looking at package names: 227 are related to Jest, 167 are related to Babel, 93 are related to PostCSS, 66 are related to Webpack, 47 are related to Firebase, 43 are related to Webpack, 24 are related to Workbox. There are even more packages that are related to those but whose name doesn't include the main product. These multi-packages, in 90% of cases, are all maintained by the same people and often live in the same GitHub repository.