We tried it, I couldn't get it to work how I wanted. I think the main issue was that developers were modifying the same scene files, which are hard to review and deconflict. That on top of some branching conflicts and failed rebases were the nail in the coffin haha... we still wanted to show off what we were able to get done. The latest build we have internally has a lot more enemies on the map. We will see the project through to some completed state outside of this game jam. We learned so much in the process.
Also, Windows and Linux editing the same files is kind of a cluster... would recommend setting up your git to optimize for this.
Thanks for your feedback!