Maybe kinda, but really you'd want reproducible cross-compilation too, so a reproducible build should produce the same binary regardless of which machine it is run on.
"Identical binaries" is not the same thing as "reproducible builds". It's maybe one aspect of one type of CI/CD, but I would say not even the majority.
> A build is reproducible if given the same source code, build environment and build instructions, any party can recreate bit-by-bit identical copies of all specified artifacts.