Like tennis where some players have a massive dominant arm. But I've never heard/seen it really being noticeable with ancient warriors or it being mentioned.
Hi there -- you may be interested in this recent post from u/iphikrates, where he talks about what we know about the physical appearance of ancient fighting men. (Spoiler alert: not much). Iph and I teamed up for this thread as well, where I mention the prevalence of bone markers in English skeletons found on board the Mary Rose and he says that we don't see the same things in ancient warriors.