@J12t :-) google knows all. amazon uses it for prime devices; microsoft flight simulator, Excel, and Azure Kubernetes Service uses it; google uses it with their K8s network offering; fastly runs it in CDN, as does https://gcore.com/fastedge; CloudFlare has a preview of it; shopify uses it as a universal sdk for their advanced customers -- search out Javy, which is what they use.

that's about as much quick work as I can do for you. :-) Hope it helps!