Well, it's the same logic - so almost by definition it should be platform-independent. People are too lazy to introduce proper abstraction between what the application does and what it shows on screen, and suddenly porting is hell.

Either way, Electron sucks because it ships a whole goddamn browser to give you just portability; you have to still pile on a ton of JS and CSS hacks to get a decent-looking SPA UI out of it, which you'd get for free with any proper GUI runtime. All that waste because people want to write JavaScript (which I understand - I have my favourite language I'd love to write more too) and this was the most brute-force way to allow it.

Embed a system webview if you must, don't ship the goddamn browser!