Since this is open-source, I wouldn't be surprised to see a fork of this developed into a fully-fledged operating system, similar to a Linux distribution. Godot's limits are being blown wide open and there's really no telling where its potential actually stops.
As a side note, an, "OS," like this would be a great home area, hub, or lore-friendly computer interface in a digital-based visual novel, investigative game, or point-and-click adventure game. Especially if miniature applications like functional text editors, configurable clocks and calendars were included for role-playing purposes. A light, functional desktop environment within a video game could revolutionize immersive simulation in gaming in pretty unexpected ways.