I think there are approximately five viable Rust toolkits: Iced, Makepad, sixtyfps, egui, and Druid (in no particular order). Any of these five could evolve to being a real solution, with enough investment. Of course, it's possible another could arise, or that I've given short shrift to one of the other contenders (areweguiyet has a list, but that resource is not super well maintained).

There are some things easier to do in Iced than Druid (especially integration with 3D, which is something we currently don't do at all). On the other hand, we're pushing pretty hard on infrastructure: proper text handling, input methods, subwindows, etc. Currently, Druid relies on platform capabilities for 2D drawing, but my main work right now is a new GPU renderer. And we hope to work with 'mwcampbell on accessibility in the next year (integrating AccessKit).

We've got a great community, but tend not to toot our horn very loudly, so people might not be as aware of the progress we're making. By contrast, sixtyfps is a commercial product (in addition to a GPL release) and has weekly updates.