[albeva]

Atom and VSCode despite all the hype are subpar editors. Slow and resource hungry. Maybe suitable for script kiddies of today ... Slack is by no means a good sample of solid engineering. Spotify last I checked was native app written in c++. What's App is just wrapped website.

[ntlve]

Spotify used to be fully native, nowadays the UI is done in various web technologies while the heavy lifting (streaming audio etc) is done in c++.