How do I sort data by geohash in firestore v9? V8 docs give this example:

const bounds = geofire.geohashQueryBounds(center, radiusInM);
const promises = [];
for (const b of bounds) {
  const q = db.collection('cities')
    .orderBy('geohash')
    .startAt(b[0])
    .endAt(b[1]);

  promises.push(q.get());
}

// Collect all the query results together into a single list
Promise.all(promises).then((snapshots) => {
  const matchingDocs = [];

  for (const snap of snapshots) {
    for (const doc of snap.docs) {
      const lat = doc.get('lat');
      const lng = doc.get('lng');

      // We have to filter out a few false positives due to GeoHash
      // accuracy, but most will match
      const distanceInKm = geofire.distanceBetween([lat, lng], center);
      const distanceInM = distanceInKm * 1000;
      if (distanceInM <= radiusInM) {
        matchingDocs.push(doc);
      }
    }
  }

  return matchingDocs;

I do not know how to translate it to V9, I have tried like so:

    const { latitude, longitude } = location?.coords || {};
    if (latitude && longitude) {
      const radiusInM = 50 * 100000;
      const center = [latitude, longitude];
      const bounds = geofire.geohashQueryBounds(center, radiusInM);
     
      for (const b of bounds) {
        const q = query(
          collection(firestore, "laboratories"),
          orderBy("geoHash"),
          startAt(b[0]),
          endAt(b[1])
        );
        const querySnapshot = await getDocs(q);
        querySnapshot.forEach((doc) => {
          console.log(doc.id, " => ", doc.data());
        });
      }
    }

But it does not return any results, how does those queries work, because in the bounds results when I set radius to 50 * 100 I get 4 arrays with hashes, I assume those are points on a map

0: (2) ['u3j', 'u3k']
1: (2) ['u3n', 'u3p']
2: (2) ['u3m', 'u3n']
3: (2) ['u3q', 'u3r']

however when I increase the search radius to 50 * 100000 I get only

0: (2) ['h', '~']

I do not understand where do I make mistake, one of those locations is intentionally very close to where I am. And assuming this search was successful, would it return just locations in area or would those be sorted? Perhaps should I use some additional library to for that? Would you recommend one, please? And should I store latitude and longitude together with geohashes or this would be enough?