Correct me if I'm wrong, but I think both Zig and Jai use LLVM as their default backend...at least, that's what I have seen via live streaming for Jai, and from Zig's repo.
I don't think it's moving away, because if you have read the entire thread, the gaming community reacts negatively to say the least and they assure everyone that LLVM does not going anywhere any time soon.