Office 365 is garbage. We had to ban people opening documents in share point through the web because absolutely destroyed the formatting of templated documents.
Have you played around with what region you're downloading from? You can change it manually and it may be worth checking out whether or not Sydney/Melbourne offer better download speeds than Brisbane.
You could change the license for future versions and charge for said updates, for the market that godot targets that would be more a little screwing to them.
How long would it take for someone to take over the project (if ever).
They don't though, if any developer had the means to take it to court it is incredibly likely that Unity would lose.
While TOS are rarely worth the toilet paper they could be printed on, I'm curious about whether arguments could be made about whether existing subscribers from 2019 could now sue for breach of contract and costs associated with (re)development.
Yeah I would say "in one round, the collective wealth goes up 5% in expectation" but "for a finite population and starting wealth, the collective wealth will tend to 0 given enough rounds" not almost, but absolutely.