for Deus Ex Randomizer, we include the DXVK DLLs as part of the Windows installation automatically, because it runs better and smoother and with less issues

(we run vulkaninfo to check compatibility first, we check support for VK_KHR_maintenance6 or Vulkan 1.4 or newer, otherwise you don't get DXVK)

https://github.com/Die4Ever/deus-ex-randomizer/blob/master/src/installer/Install/init.py#L123-L151

The funding (valve paying crossover devs) has the focus on games, almost nobody is purchasing crossover for apps

@inzen yeah, that would be terrible. youtube.com/watch?v=dYCXCqp1U5Y

They could implement a compatibility layer themselves, Apple managed to keep compatibility moving from PPC to x86 and then to ARM

@ashleythorne true! But the Win32 ABI was the "holy grail" of Microsoft. You can run a Win95 application written under Borland C++ today! That they even considering of breaking that, would be unthinkable a few years ago.

Proton-GE is essentially bleeding edge with all of its dependencies and upstream set to latest, so it gets updated constantly as a rolling release.

Valve waits until the next version has been well tested before bumping it in proton experimental, and then eventually the default release.

Yeah, when you're compiling from source code, it's much easier to add in ARM support. Kernels do need to handle more hardware-specific stuff, like interrupt handling, context switching, feature enablement and the like will likely need custom ASM code and might have different parameters/events to handle. But at the user level, you can often compile for ARM by just changing a few command line arguments and it'll be fine as long as you don't rely on inline ASM and have ARM versions of any libraries you need.

You still might need to do some adjustments for specific behavior differences when it comes to concurrency and atomicity of operations. It didn't surprise me to see that the previous attempt to make an ARM ReactOS didn't support multi-threading, because trying to enable it was probably an unreliably buggy mess with race conditions all over the place.