There is a pretty significant difference between the way JS is used there and in electron apps. This might be what you were getting to but I tend to agree with

There is a pretty significant difference between the way JS is used there and in electron apps. This might be what you were getting to but I tend to agree with the idea of place all the interaction logic in a high kevel language and get the performance where it's needed. Electron does not do that and neither does the people developing electron apps most of the time. I doubt many people throwing electron apps together chose to do that so they can put their CPU intensive code in C/C++/Rust/swift, they want to erite everything in JS. What should happen is the bare minimum needs to be in JS and the rest in an efficient compiled language. I mean even the browser does that, the DOM API hands off to lower level libraries for multimedia etc.