kiuser behavior / zwcontinue / signatures

[KutaG59]

How well/How is kiuser behavior implemented in wine? I am trying to use a software that relies on "kiuserexceptiondispatcher" to hook onto a process (thats running on another Wine/Proton/Native prefix).
The issue at first, was the software not being able to hook into the process because it couldn't see it, after tinkering with wine/mono/runtimes, I was able to get it to detect the software under wine, but it hard crashes immediately on inject. I can only assume its because of a incompatibility between wine and windows kiuserexceptiondispatcher behavior.

The process looks to do something like

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"if(g_windows_ki_fn) g_windows_ki_fn(ExceptionRecord, ContextRecord)"

so that said software could set something like

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"g_windows_ki_fn = ExceptHook"

Adding onto that, The Dev does want to add Wine/Proton support, but this is holding them back and they aren't Linux savvy, so they cannot exactly find the issue.
I've found a recent message from them, stating that if they were to support wine, wine would have to support

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void ExceptHook(PEXCEPTION_RECORD ExceptionRecord, PCONTEXT ContextRecord)

"and that signature and would need to support zwcontinue resumes" - Said Dev

I tried browsing the source code to find my own Answers, but I got lost a lot, and ended up not being able to find a few things.

If this is not already a supported thing, Would I be able to implement it and request a merge as said on the FAQ about contributing to wine?
Or is this not really a feasible thing as of right now?

sorry if my question is odd/doesn't make much sense, or if I may seem ignorant/misinformed, English is my 2nd language.

[DarkShadow44]

Would you be able to provide a simple example program that works on windows but fails on wine?