I wonder if it's mostly the publishers, along with Steam.As some others have said a bit above, there won't be a Mac version. I didn't know this either, tried to get a refund clearly explaining I was not aware of this. I had asked folks on the Steam forum if I could purchase these upcoming Mac releases during their BF sale (Stray and this), that when they were launched if I would get access. They said yes so I did.
In short, they denied my refund because of their 2 week rule. They can't overlook what clearly is going to lead for some confusion and plenty of unearned sales.
Thanks Steam for stealing $40 from me!
I got the Mac version of Life is Strange 2 and a few other games when they were released for Mac.