Man pages matching name pn53x-diagnose in section 1:

pn53x-diagnose.1.en	debian 10 / libnfc-pn53x-examples
pn53x-diagnose.1.en	debian 11 / libnfc-pn53x-examples
pn53x-diagnose.1.en	debian 12 / libnfc-pn53x-examples