Mapsec.name() returns Strings(name): every caller displays the name, so the region map, the PokéNav, the map name popup, Match Call, TV and the other screens that print it follow, and the RSE summary's met location is translated the same way.
The Pokédex entry passes its category and description through Strings() when drawn, and the starter selection and the Battle Factory build the same CopyMonCategoryText string the same way.
SummaryData.contestEffectDescription() and contestCategoryName() translate by the English text, like the move and ability descriptions, and the RSE summary, the move relearner and the contest move window print them.
Pokemon.abilityName() returns Strings(name), so the RSE summary and the battle ability placeholders show a translated name, as FireRed's summary already did. FireRed's summary no longer translates the getter's result a second time, and the battle adapter keys an ability outside its built-in table by Pokemon.romAbilityName(), so a translated name cannot become an unknown ability key.
thibautbus