Mikhail Gündogdu attended a ton of design system conferences and collected all of the knowledge into a great piece.

I especially like what Diana Mounter has to say about feeling imposter syndrome with your design system compared to other companies’ systems:

That’s why Diana says you shouldn’t worry about comparing your design system to any other organization’s system, because thats not what proves its success. Instead, Diana says, push your design system out and analyze utilization to measure its success. Chaos will be a natural part of something so new to the practice as design systems, so focus on what matters and take advantage of the chaos. Are people using the design system in their workflow, and contributing back to it to make it better?

I can attest that comparing your design system to others out there is a fool’s errand. Companies are different, and so should be their systems.