For me the ugliest part of Electron is that it uses client-server model inside a program and includes both a browser and Node.JS. This is so stupid. If you love microservices so much why don't you put every React component in a separate process?

Also, browsers contain too much bloat, why do you need support for elements like "hr" or attributes like "cellpadding" in a modern app? Throw away all legacy garbage.

Also, immediate mode UIs (like Rust's egui) are even worse garbage than a browser. "Immediate mode" means that on every mouse move a function is run that re-draws whole window from scratch. I tried running PhotoCraft (uses egui) in a VM with no GPU and it felt like playing a game at 3 fps. The CPU is simply unable to redraw whole GUI with acceptable speed. It will be especially bad on 4K and 8K screens.