Finally! You can install the latest Arduino IDE and upload code to an Arduino on a Chrome OS device!!! I've documented the entire process. It's hacky, but works well after the install. **
How to install Arduino IDE on your Chromebook | by Ethan A | Medium
How to install Arduino IDE on your Chromebook | by Ethan A | Medium
How To: Install Arduino Cloud for Chromebook - YouTube
Arduino Create comes to Chrome OS devices! | Arduino Blog
Programming an Arduino from a Chromebook with Crostini – Likely to be Forgotten
How to install Arduino IDE on your Chromebook | by Ethan A | Medium
Lantau kilowatt counter: Arduino IDE on Chromebook via Crouton
How to program Arduino on Chromebook - YouTube
Chromebook で Arduino IDE を使う #Arduino - Qiita
Can You Install the latest Arduino IDE on Chrome OS or Chromebook? - YouTube
UNO WiFi Rev 2 Chromebook Setup | Arduino Documentation