I used it a long time ago. As far as I know, it's an abandoned project now, very few people use it in the Java community. Go for one of the more popular ones: Spring, Micronaut, Helidon or Quarkus.

There are new frameworks all the time, but only very few establish a community that allows the framework to survive on the longer term. When you choose something that has been around for a long time, the probability for this is much higher, than for something that looks promising. Another benefit of the established frameworks is the amount of experience from various corner cases that has been coded in them. New frameworks often appear to handle simple use cases more conveniently, but that is only because they ignore all the complexity that the established solution has painfully learned throughout the years. You get that "for free" when you choose such a framework.

Hm I can guarantee that the frameworks I listed above will be well maintained for a long time and are much more “battle tested” than Dropwizard itself (though some of the libs that it includes are actually independent and used in other frameworks, those are sure to survive long time). You make it sound like Dropwizard is the more established framework when in reality it’s rather the opposite.

Yup, exactly, and Dropwizard is basically an opinionated bundle of Java "All-Stars" libraries. It's not like the "glue" needs a ton of updates and everything else is already well maintained at the source.