My Spacemacs session often grows weeks old :)
Emacs also has a client/server architecture so I can spawn the emacs daemon and then connect to it from anywhere.
We have a few people in VSCode at work, a few in Sublime and yet more in Atom. They're all very happy with their setup :)
The main benefit of Electron is the community. Everybody knows HTML/CSS/JavaScript, so can write extensions / customisations. If I were Microsoft, that's how I would have justified Electron.
Still, I personally much prefer Sublime Text :-D