Man pages matching name update-apt-xapian-index in section 8:

update-apt-xapian-index.8.en	debian 10 / apt-xapian-index
update-apt-xapian-index.8.en	debian 11 / apt-xapian-index
update-apt-xapian-index.8.en	debian 12 / apt-xapian-index