When even the large AI labs that supposedly sit on (/with) the best of the best can't even ship native cross-platform desktop applications and instead ship some bloated Electron monsters, I'm not sure what kind of hope there is. The ones who were publishing lightweight apps continue to do so, the ones who didn't care, still don't care.
writing native gui code is atrocious, add to that llms being horrible with ui dev and you end up with with what you describe. but at least if we get more non-ui stuff written in more efficient languages there is going to be some benefit.
Compared to what though? It's not nearly as horrible as it used to be, and you can do it fairly neatly today, and end up with something much better. Requires you to actually have skill and knowledge about there being other alternatives to Electron though, which seems like knowledge hard to come by these days.