The library API itself might be stable, but the ecosystem is not. And that ecosystem has vulnerable libraries that should be updated. And that's not even going

The library API itself might be stable, but the ecosystem is not. And that ecosystem has vulnerable libraries that should be updated. And that's not even going into using a big component library, like Material UI, which might be its own nightmare. This is something I've dealt with a lot personally, and I've made a good attempt to avoid unnecessary 3rd-party dependencies. But the huge churn continues in the build tooling, testing, linting, etc.