> The ZIG compiler requires a C compiler to compile to a native executable though.

Do you mean compiling the zig compiler or zig programs?

I think neither is quite the case. zig itself can build both Zig programs and C/C++ ones. Zig doesn't need to use a C compiler to build native Zig executables. It does need a linker, as does Rust, as do C/C++ programs and AFAIK zld is not yet ready.

However it's accurate to say that it's only able to compile the C/C++ code by leveraging libclang, the C/C++ compiler underneath.