Part of this is probably related to Apple's pushing gaming a little harder with Sonoma. The pool of players is so small because gaming has been neglected on th

Part of this is probably related to Apple's pushing gaming a little harder with Sonoma. The pool of players is so small because gaming has been neglected on the Mac for so long, while tech like Vulkan that might have opened the possibility of gaming on a Mac has been blocked entirely. Valve is probably spot on in saying it's not worth the effort for the users they'll pick up right now. That said, now that Apple is at least presenting as if they're trying to change this, that user base could grow over time. The problem is that in the shadow of Epic's big battle with Apple over App Store rules, it would make sense that Valve is wanting to just NOPE right out of this arrangement. Why help build gaming on the Mac when the balance of evidence suggests it's just going to be used to drive you off the platform? It presents a risk to a chunk of Steam's install base for little to no benefit. I'm honestly pleasantly surprised macOS still gets the support it does by Unreal engine, it would be really easy for Epic to deprecate macOS support entirely (albeit not in the consumer's interest).