Sure, but the same might be said of the subset of Java that existed twenty years ago; this is different from what people mean when they say "Java's good now".
JavaFX is better than swing, having done both (swing in a past life). CSS support is the big deal, plus modern rendering pipelines. Add that to the nice FP goodies and for-real cross-plaf packaging, (plus LLMs to get you through the crufty bits), it's IMO a serious contender for desktop UI.
