Man pages matching name mapscrn in section 8:

mapscrn.8.en	debian 10 / kbd
mapscrn.8.es	debian 10 / manpages-es-extra
mapscrn.8.en	debian 11 / kbd
mapscrn.8.en	debian 12 / kbd
mapscrn.8.es	debian 12 / manpages-es