No, and yes. I, and my last few places I worked all use sequence diagrams, especially when dealing with a new feature with a microservices based architecture (p

No, and yes. I, and my last few places I worked all use sequence diagrams, especially when dealing with a new feature with a microservices based architecture (private and gov clients). But very basic usage. I do spend a lot of time tinkering with diagrams in http://www.websequencediagrams.com http://www.websequencediagrams.com both for work and hobby projects.