Works for me, please make sure to set up the 32-bit DLLs as well.
If that doesn't work, disable DXVK for Steam by setting d3d11 and dxgi to builtin for Steam.exe.
Both are installed. It could be that only 64-bit is affected.
Can you post wine console log or something? Right now this bug report contains pretty much no info and I don't have the slightest idea what your specific issue might be.

These lines seem relevant
0059:err:module:import_dll Library dxgi.dll (which is needed by L"D:\\Steam.wine64\\bin\\cef\\cef.win7\\libcef.dll") not found
0059:err:module:import_dll Library d3d11.dll (which is needed by L"D:\\Steam.wine64\\bin\\cef\\cef.win7\\libcef.dll") not found
0059:err:module:import_dll Library libcef.dll (which is needed by L"D:\\Steam.wine64\\bin\\cef\\cef.win7\\steamwebhelper.exe") not found
It's a clean wine prefix. Previous commands have been...
export WINEPREFIX=/media/Makai/home/.local/share/wineprefixes/wine64-dxvk WINEARCH=win64
winetricks steam
setup_dxvk64
Did you install DXVK through the setup_dxvk32 or setup_dxvk64 scripts? If you only set them to native in winecfg, Wine won't be able to find the DLLs.
I ran setup_dxvk32 as well and same situation. Steam friends is unable to go online.
Tried a clean wine 32 and no dice. Whenever d3d11 and dxgi are set to native steam's friend feature is unable to go online.
Note that steam itself goes online fine, it's only friend's feature.
native, then builtin works as well. Not sure what are the issues running dxvk with it.
This appears to be a bug in wine without dxvk as well. It replicates with the d3dx11_43 too.
I'll go report it over there.
If it can't find the DLLs, something about your wine prefix is messed up. Please double-check if the dxgi.dll and d3d11.dll exist in $WINEPREFIX/drive_c/windows/system32 and $WINEPREFIX/drive_c/windows/syswow64, and that they point to the correct files.
WINEPREFIXx1 2018-08WINEARCH=win64x1 2018-08WINEPREFIX=/media/Makai/home/.local/share/wineprefixes/wine64-dxvkx1 2018-08d3d11.dllx3 2018-08dxgi.dllx2 2018-08libcef.dllx1 2018-08dxvi.dllx1 2018-08
Steam has introduced new feature that reworks the Friends UI, it isn't loading and all the online features and game integration fail to work. A work around is to revert to the old one with the
-nofriendsuioption.This issue happens whenever dxvi.dll and d3d11.dll are set to native. If you set it to builtin then native, it will load but dxvk won't work in that scenario.
Software information
Steam
System information