FWIW, in a world with very few major game engines and very few major game platforms, I'm elated that the latter might not be allowed to purchase the former, as

FWIW, in a world with very few major game engines and very few major game platforms, I'm elated that the latter might not be allowed to purchase the former, as it is trivial to predict how Meta would decide--whether explicitly as the reason they bought it in the first place or implicitly from incentivized lack of interest in the alternative--that Unity would become a tool that only can be used to develop apps for Quest.