That's also roughly what I see on Windows for my Electron app [0]. 0% idle CPU and about 200MB of RAM. That's large but acceptable compared with other non-Electron apps running, like Sublime Text (170MB) or Thunderbird (320 MB).
Compare VSCode or Atom with Emacs or Gvim for something more native.
To pick some apps off my desktop right now:
- Emacs with a pile of extensions, 22 MB
- SpeedCrunch, 13 MB
- SumatraPDF, 19 MB
- MS Word, 101 MB