Right now, at least symbols.nupkg files are filtered out: https://github.com/dotnet/arcade/blob/05c02be5e2ac7e7ec2dafc59652f2b22f0e22550/src/Microsoft.DotNet.Arcade.Sdk/tools/SourceBuild/SourceBuildArcade.targets#L114-L115

We need these files to ship the product when not building from source. UB doesn't use the repo symbol archives.

Not sure about the source-build intermediate packages, they probably don't need the symbol packages but the manifest should list them.

I know there are separate issues talking about unifying the publishing infrastructure but I think we should fix this meanwhile.

@NikolaMilosavljevic as you know the code base best, can you please take a look?

cc @mmitche