A lot of my projects are centered on building data-dense web apps for power users. So the focus is primarily on the big-screen experience, bundle size isn’t as much of a concern, etc. My experience probably isn’t the norm. But anyway:

• antd for most components. And I generally like it. It honestly sucks if you want a responsive mobile app, but for desktop users it shines. They have almost every scenario you can imagine covered (and documented)
• react-window or react-virtualized for ginormous datasets. It makes a world of difference performance-wise and I think it has a pretty clean API
• react-grid-layout for making the best use possible of that gigantic screen :p and so you can let people fiddle with the layout of their dashboards