Man pages matching name mtr-packet in section 8:

mtr-packet.8.en	debian 10 / mtr
mtr-packet.8.en	debian 10 / mtr-tiny
mtr-packet.8.en	debian 11 / mtr
mtr-packet.8.en	debian 11 / mtr-tiny
mtr-packet.8.en	debian 12 / mtr
mtr-packet.8.en	debian 12 / mtr-tiny