Oh come on, you can't just invalidate the virtue of the entire article (which is, for the intended audience, is very good, btw.) simply because it fails to mention some tool. Qdrant is not even the "de facto" standard choice; the vector database landscape is still evolving. Pinecone, Milvus, Faiss, and Vespa are also used, and not all of them were mentioned either.

Please, don't complain just for the sake of it. Offer constructive criticism. We are all here to get better at something and find knowledge, not for flexing our egos.