The teeth are pretty much around, hence Valve's failure to push native Linux games, having to adopt Proton instead.
The reality is that for applications with visuals better than vt100, the Win32+DirectX ABI is more stable and portable across Linux distros than anything else that Linux distros offer.
For concrete examples, check out https://www.protondb.com/
That's a success.
Regardless, "native" is not the end-goal here. Consider Wine/Proton as an implementation of Windows libraries on Linux. Even if all binaries are not ELF-binaries, it's still not emulation or anything like that. :)
OS/2 lesson has not yet been learnt.
If the devs then choose to improve "Wine compatibility" or rebuild for Linux doesn't matter, as long as it's a working product on Linux.