I think that would be absolutely pointless. The advantages of having a system that’s free to study, audit, modify, and contribute to goes away once you make it rely on proprietary software to work at all. In fact that’s not FOSS. There are already desktop operating system that works this way, with an open source kernel and core but reliant on proprietary software, with first party levels of support: they’re called macOS and ChromeOS
I’m hoping he can dodge those papers forever