This has pleasantly veered off course from the initial question/request for having an option in how the file name is displayed in the UI (which I still hope will have a settings option or some permanent way of changing the display)
That being said there is a this helpful forum post about Git Guidance and an incredible video (answered a lot of my questions) by @FlorianPircher with a step-by-step introduction of working with Git and .glyphspackage files → https://www.youtube.com/watch?v=1Pi0OZw2ZKo&t=16s