As described in the article, Jest is no longer run by Meta and its primary maintainers don’t work there.
I also would argue Jest development slowed down after Meta transferred the project to OpenJS, so…
I also would argue Jest development slowed down after Meta transferred the project to OpenJS, so…
https://news.ycombinator.com/newsguidelines.html
A rotten apple doesn't roll far from the tree. The vast majority of Meta projects and former projects are garbage. If you need to ask why, because it's experience.