My friend and I often make games together using Unity, which has a collaboration feature, but we are trying GDevelop now, and I am wondering if there is any way that we can collaborate, kind of like Google Docs.
Directly working the same scene wouldn’t be possible currently.
However, if you set up your project to use multiple files, you can then both work on different scenes/external events for the game at the same time by sharing the files.
The easiest way to do this would be using Github, so you can both push/pull updates as you complete them. You can see some info around setting up a Github account and using Github desktop here: How to backup and maintain your project using GitHub and GitHub Desktop [GDevelop wiki]