> Wouldn't it be better to make native application, especially for code editors, where developers spend most of their time, where every noticeable lag and glitches are not appreciated.

I think it'd be better to improve Electron so that native applications don't have so much of an advantage. WebAssembly is a big part of that. Another useful part would be an alternative layout mode that eschews legacy HTML/CSS cruft, for more predictable and performant GUIs.