https://bugs.winehq.org/show_bug.cgi?id=41380
--- Comment #4 from Austin English austinenglish@gmail.com --- (In reply to Vasco Manteigas from comment #3)
I create a new Wine Staging wineprefix (due to the Vulkan support), install Visual C++ 2015 using winetricks, and stall another unimplemented function...
api-ms-win-core-rtlsupport-l1-1.RtlLookupFunctionEntry
I think the real pattern is to fix the missing functions until the GUI could start.
That should be a new bug (please cc me).