For rust desktop apps, why target a web engine, when we have much more lightweight native GUI frameworks? We don't need yet another bloated Electron.
Also you get to take advantage of the massive amount of effort that goes into web engines for accessibility, cross-platform consistency, and performance.
Electron is a memory hog, but actually very powerful and productive. There’s a reason why VSCode, Discord, and many others use it.
But yeah, I wouldn’t say no to a native Rust desktop stack similar to Qt. I know there are options at various levels of sophistication that I’m curious about but haven’t explored in depth.
There’s certainly a place for truly native apps, but there are also a lot of reasons companies keep picking Electron. Efficiency is just one consideration.
I seriously doubt the approach of running a native desktop application in the browser would give you performance or usability as good as running an actual web app.