I think tweaking the garbage collector when running on native is a specialized use case. Anecdotally, the projects using native image I'm aware of don't tweak the garbage collector settings that are available in the community version at all. If throughput is critical enough to warrant garbage collector fine tuning, there's a decent chance you'll run it on a VM anyway. Of course, there are exceptions, but I don't think this is a limitation for most projects.

That being said, most of the JVM projects I'm very familiar are written in Clojure, so they may well be outliers compared to Java or other JVM languages.