I'd add 'Steam server meltdown - Pending' to this list
I'd be more concerned with Xbox Game Pass servers melting than I would Steam for this release. I imagine the game pass subscriber list (whether paid or free trial later in the game release window) will be a bigger use case than people actually paying for it on steam. Why pay $70 to own the game when you can pay $15 (or even 10) for a month of trying out the game to see if you even want to purchase the entire game, but apologies for bringing logic into gaming arguments. I'll just see myself out.