Let's see:
Apple dropped support for OpenGL long ago and skipped Vulkan (required to emulate DirectX)
Apple somehow disclosed device details so that Linux support since 2017 is reduced to basic features
different CPU architecture will cause huge overhead on emulating x86.
Apple works hard for years to keep Linux developers out of their ecosystem. But Wine and Proton are primarily Linux applications. Maybe some hardcore fanboys try to support it, but it will never reach the compatibility again it once had.