diff --git a/modules/main/src/mapbox-legacy/mapbox/mapbox.ts b/modules/main/src/mapbox-legacy/mapbox/mapbox.ts
index 5e3f295dd..362973cb5 100644
--- a/modules/main/src/mapbox-legacy/mapbox/mapbox.ts
+++ b/modules/main/src/mapbox-legacy/mapbox/mapbox.ts
@@ -501,7 +501,7 @@ export default class Mapbox {
         diff: styleDiffing
       };
       if ('localIdeographFontFamily' in nextProps) {
-        // @ts-ignore Mapbox specific prop
+        // mapbox-gl v1 ships no bundled types but supports this option at runtime; TS 4.9+ in-narrowing makes this type-safe
         options.localIdeographFontFamily = nextProps.localIdeographFontFamily;
       }
       this._map.setStyle(normalizeStyle(mapStyle), options);
diff --git a/modules/react-mapbox/src/mapbox/mapbox.ts b/modules/react-mapbox/src/mapbox/mapbox.ts
index bb40fd7c3..39c20f9c9 100644
--- a/modules/react-mapbox/src/mapbox/mapbox.ts
+++ b/modules/react-mapbox/src/mapbox/mapbox.ts
@@ -498,7 +498,7 @@ export default class Mapbox {
         diff: styleDiffing
       };
       if ('localIdeographFontFamily' in nextProps) {
-        // @ts-ignore Mapbox specific prop
+        // localIdeographFontFamily is a MapOptions field in mapbox-gl v3; TS 4.9+ in-narrowing makes this type-safe
         options.localIdeographFontFamily = nextProps.localIdeographFontFamily;
       }
       this._map.setStyle(normalizeStyle(mapStyle), options);
diff --git a/modules/react-maplibre/src/maplibre/maplibre.ts b/modules/react-maplibre/src/maplibre/maplibre.ts
index fa16e53ad..2b5bce996 100644
--- a/modules/react-maplibre/src/maplibre/maplibre.ts
+++ b/modules/react-maplibre/src/maplibre/maplibre.ts
@@ -446,7 +446,7 @@ export default class Maplibre {
         diff: styleDiffing
       };
       if ('localIdeographFontFamily' in nextProps) {
-        // @ts-ignore Mapbox specific prop
+        // localIdeographFontFamily is a MapLibre StyleOptions field; TS 4.9+ in-narrowing makes this type-safe
         options.localIdeographFontFamily = nextProps.localIdeographFontFamily;
       }
       this._map.setStyle(normalizeStyle(mapStyle), options);