Forgot this, might help
What makes you think that this is a DXVK bug and not just a general performance issue when running under wine?
Also it looks like this might require child window rendering, which is not supported by wine and therefore also cannot be supported by DXVK:
info: Presenter: Actual swap chain properties:
info: Format: VK_FORMAT_B8G8R8A8_UNORM
info: Present mode: VK_PRESENT_MODE_IMMEDIATE_KHR
info: Buffer size: 1280x720
info: Image count: 2
info: Exclusive FS: 0
err: Failed to create surface
But it works without dxvk with proton/gl, i showed that in the video.
It wasn't obvious that the video was showing it running under Proton and not a native Linux build.
Anyway, if it works with GL then just use that. We cannot support this application anyway due to winevulkan limitations, it's just not possible to work around that in DXVK.
SFM works and performs fine for me on DXVK on Windows -- but yeah it will have issues on Proton due to child window rendering.
As a workaround, you can use the VGUI version of SFM (which is better imo as the engine viewport and the SFM tools are one in the same, and the resolution stuff actually works).
Launch with -noqt -usevgui. Then do this in the UI Windows->Engine Window->Uncheck Auto Hide Engine Window.
It should end up looking like this, just the same thing with more features and less flare:

Its still a bit janky guess i still have to use dualboot for this one :(
Thanks anyway :)
define: janky?
Are you still experiencing slowdown etc?
The -usevgui command drops down a lot of performance i just tried on windows also same result, when im manipulating the caracter the fps drop from 30-40 to like 12-15 only without that command is usable for me.
Very weird, can you send me a DMX of your scene? I'm getting like 300fps doing pretty much anything (until we get uberlights involved)
Load the default one then create new project and just add a zombie model then when you go to edit mode press and hold CTRL and select any part of his body and try move the mouse, thats where it drops alot also in when adding models/maps its alot laggy with that command
Nothing extracted yet.
This game/tool has some issues rendering some menus,the video is laggy also when i try to move the timeline it just fireezes a lot and sometimes crashes.
This is not present with GL only with dxvk, i made a video showing it:
https://www.youtube.com/watch?v=gDKRgyanafg&feature=youtu.be