I honestly don’t think MS really wants to own Unity. Like, sure, there’s a small amount of synergy because some of their games use it, but owning Unity also means committing resources to support and improve it and competing with Unreal to an extent.

If anyone would be interested in buying Unity I’d think it’d be a Chinese corp like Tencent or NetEase or else a publisher that works with a lot of indies like Devolver or maybe Embracer.