People weren't writing cross-platform desktop apps before Electron.
Oh. Wow.
Are we really at the point where people are rewriting history that profoundly in order to justify Electron?
Let's see... on my computer, right now, I have installed the following cross-platform desktop applications, none of which are built with Electron:
1. Chrome itself
2. Firefox
3. IntelliJ
4. Vim
5. LibreOffice
6. LyX
7. Gimp
8. VLC
9. Steam
10. VirtualBox
11. Ardour
And that's just off the top of my head.