I totally get that! Right now I'm waiting to see if itchio will reverse its new policy (fingers crossed). The version of Act 2 that's up here is still in Alpha, & Steam's a bit more strict about how finished Early Access/Alpha games have to be, so I'm not 100% on whether the date will get moved unfortunately - but I CAN say that if you wanna play it safe on not doubling up, I'd wait for Steam since that's a sure thing re: Act 2 coming out (if that makes sense!)