I will put together some benchmarks over the weekend. Claude Code and I don't know PowerShell that well, but we will figure it out.

Personally, I would expect all the permutations of the standard library modules required to be provided by my compiler vender, e.g. Ubuntu.

The thing that I think is missing from this conversation is the ccache tool. That tool's optimizations are effectively broken by changes to binary precompiled objects. Otherwise, it is capable of some incredibly perceptive caching.