From top of my head, it seems to have support for clang-tidy, too. Also, steps to reproduce are just a couple cli scripts that comes in LLVM.exe installer and must work regardless of OS.
I think it will be a fairly long road till it becomes mandatory for whole LLVM, I hope to adapt it on “per-project” basis where each group of maintainers would agree to have clang-tidy in their CI.
As for clang-tools-extra/clang-tidy directory, I think we come to a universal agreement that we want to have clang-tidy [RFC] Create hardened .clang-tidy config for /clang-tidy directory - #12 by vbvictor