Why do we see so little reuse of web UI across organizations? Web projects freely use countless open libraries from npm and elsewhere, but it’s rare to find high-quality web UI code which is flexible and reliable enough for immediate reuse. This makes creating great user experiences both difficult and expensive.

This fantastic talk by Jan Miksovsky from 2019 does a fantastic job describing the current state of UI design/development, and articulates much of the rationale for the creation of a Global Design System. I found myself nodding along with this entire talk, and he naturally spends a fair amount of time describing how Web Components can be enlisted to help us all create and share sturdy solutions for common UI components.