I don't use Atom but I do use Visual Studio Code (which is also Electron based)....

jetti on Sept 12, 2017 | parent | context | favorite | on: Introducing Atom-IDE

I don't use Atom but I do use Visual Studio Code (which is also Electron based). I use it because there are no real IDEs for Elixir and navigation is amazing. It is also lightweight (compared to JetBrains' IDEs). Another big plus is that it runs on Linux.