Yes, on Debian and Ubuntu, the stock BIND config only sets listen-on-v6 { any; }, and IPv4 listening on port 53 comes from BIND’s built-in default.
Once we add any listen-on directive for IPv4 that implicit default is replaced.
That said, on Debian and Ubuntu we should also add listen-on port 53 { any; }; to /etc/bind/named.conf.options config file to keep the original behavior.