Another thing I've tried was using D9VK (as if I recall correctly current MoI version uses DX9). What it basically does is it translates DX9 calls into Vulkan. Sadly it would require "child window rendering" which is currently not supported in D9VK. But maybe will see this feature implemented - as this project matures quickly.
I wonder whether MoI beta, which uses newer DX would work with DXVK, which is much more mature project (it translates DX10/DX11 calls into Vulkan).
If someone is willing to play and test let us know how it went.

Oh, and the reason I'm trying it out is because from my experience those "WINE addons" offer much better performance and stability.