It's important to acknowledge the relevance of web development, and not only specifically to frontend development. Today, nearly every kind of software we build can be developed using web technologies, and target virtually every platform.
It's amazing how JavaScript has penetrated the industry and, it has certainly been a game changer ever since. Using web technologies, you can write complete backend systems, including microservices and serverless architecture styles, while using your preferred protocols and patterns, such as REST, GraphQL, and WebSockets. It doesn't stop there either: web technologies are relevant for IoT, VR, OpenGL, and even databases!