Man pages matching name cryptmount in section 8:

cryptmount.8.en	debian 10 / cryptmount
cryptmount.8.fr	debian 10 / cryptmount
cryptmount.8.en	debian 11 / cryptmount
cryptmount.8.fr	debian 11 / cryptmount
cryptmount.8.en	debian 12 / cryptmount
cryptmount.8.fr	debian 12 / cryptmount