In particular, this is important when you are getting a crash dump from somewhere. In order to actually debug things properly, you need to load the crash dump into WinDBG and then run the following commands:
.sympath srv*c:\Symbols*https://msdl.microsoft.com/download/symbols .load C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.0.0\sos.dll . .reload
The first step is to setup the symbols, so you can see method names, instead of addresses. The second will use the CoreCLR SOS dll (note, if you have different versions, you might need to get the sos.dll from the machine that the user is running along with the dump). And finally you are reloading the symbols (this will be slow on the first time).
That is it, now you can start working with WinDBG relatively normally, although I did notice some of the commands have better UI. Looks like SOS and SOSEX had a meeting.