Bullshit. Spotify, for example, existed before Electron, and it was very fast. Text editors existed before Electron, and they didn't require 300 MB minimum to run. Same with collaborative chat programs.
Electron is just a way to reuse web developers for desktop development - I.e. a way companies now have to cut development costs.
Electron is just a way to reuse web developers for desktop development - I.e. a way companies now have to cut development costs.