That's what I was also wondering. We tried to use Xcode Cloud this year in my company, but it is incredibly slow. We had to fall back to GH Actions + self-hosted runner (Apple Silicon). I really cannot understand why Xcode Cloud still uses Intel. It really does not make any sense from a consumer/developer perspective.

I'm facing the same issue. We have one file that "import WebKit" -- no manual linking is in place. It ran fine on iOS 18.4/Xcode 16.3, but started crashing in Xcode 16.4/iOS 18.5

Quick update: the above mentioned documentation was removed in Xcode 13 beta 4.

Still an issue in Xcode 13 beta 4. :-/