Earlier quoted context omitted.
Genuine question: What do Atom and Visual Studio Code offer that Sublime Text doesn't? I have tried both within the last year and wasn't able to find any significant advantages (except for VS Code's excellent TypeScript experience), but they both ran slower and used more memory. Perhaps I should have used Nuclide? (Not asking about Webstorm because I've used the IntelliJ family of IDEs and understand their advantages…
I use Atom over Sublime Text solely for the Hydrogen plugin ( https://github.com/nteract/hydrogen ). That plugins are written in javascript (larger developer base) and allows more customization of Atom (more open plugin api) also yields more niche plugins.
For what it's worth I would imagine more javascript devs would write plugins for Atom than python developers would write plugins for Sublime Text.