Man pages matching name update-service in section 8:

update-service.8.en	debian 10 / daemontools-run
update-service.8.en	debian 10 / runit
update-service.8.en	debian 11 / daemontools-run
update-service.8.en	debian 11 / runit
update-service.8.en	debian 12 / daemontools-run
update-service.8.en	debian 12 / runit