Man pages matching name dpkg-preconfigure in section 8cdebconf:

dpkg-preconfigure.8cdebconf.en	debian 10 / cdebconf
dpkg-preconfigure.8cdebconf.en	debian 11 / cdebconf
dpkg-preconfigure.8cdebconf.en	debian 12 / cdebconf
dpkg-preconfigure.8cdebconf.en	debian 13 / cdebconf