I would agree that Spring has a lot of Bloat, but Spring Boot is not so bloated and frequently used for microservices with the Netflix libraries like Zuul, Hyst

I would agree that Spring has a lot of Bloat, but Spring Boot is not so bloated and frequently used for microservices with the Netflix libraries like Zuul, Hystrix, etc. There are libraries which are more lightweight of course but Spring Boot is very popular because it has libraries for a lot of use cases which you can add to your maven or Gradle dependencies