The title indicates a wrong assesment: as DNS provides indirection, a means to allow a system to group, balance, etc based on a record to an/a set of address(es). Not even considering to open the link as it sounds absurd.

I take from some of the other comments he uses /etc/hosts on hosts with Ansible to provide resolving. Sounds convoluted as /etc/resolv.conf and libc resolvers works. Go for the lowest fallback and dump files with Ansible. Homelab with extra steps, as setting up a DNS server is easy, ... Consider coredns, dnsmasq, if bind is too much