The only things these things teach me is that "Platinum - It runs perfectly" is that ProtonDB creators clearly have a different view on perfect. "Doom Eternal runs perfectly - it just have some pink flickering every minute!" "runs perfectly - it just closes when you try to start it." "runs perfectly - multiplayer doesn't work though." Microsoft can change DirectX whenever they want, that goalpost is always going to c…
It's called Vulkan, I believe. Or, you know, OpenGL even. Doesn't change the fact that it's the developer who will have to support it. Also doesn't change the fact that the developers _won't_ support it because of the same reasons that they don't now: it's not commercially viable. DirectX is not the problem.