As for my biased opinion.. Everyone should consider foss and switch key systems to Linux and BSD for redundancy. That’d be wonderful, even if circumstances eventually optimize towards a futuristic catch 22.
I’m reluctantly coming around to the idea that spofs are a balancing act of sorts. Balance, as in misery loves company, convenience, insurance, and blame ability. The combined legal, technical, and economic consensus unwittingly incentivizes hardcore centralization.