Man pages matching name semanage_seuser_modify_local in section 3:

semanage_seuser_modify_local.3.en	debian 10 / libsemanage1-dev
semanage_seuser_modify_local.3.en	debian 11 / libsemanage1-dev
semanage_seuser_modify_local.3.en	debian 12 / libsemanage-dev