Time for your linker vendor to parallelize their algorithm.
Osmos.io is built on Rust so that’s LLVM. No commercial vendor involved.
There is Mold (https://github.com/rui314/mold) as an alternative but it doesn’t support MacOS yet and that’s a blocker for our team.
Our "world" build is slightly faster on my M1 Max.
https://twitter.com/kiratpandya/status/1457438725680480257
The 3990x runs a bit faster on the initial compile stage but the linking is single threaded and the M1 Max catches up at that point. I expect the M1 Ultra to crush the 3990x on compile time.