Hello @Roey_Maor
The architecture is somewhat similar to Atlas Search here: https://www.mongodb.com/docs/atlas/atlas-search/atlas-search-overview/ . Though there are some differences.
Vectors are stored in your MongoDB documents as a BSON Arrays and once you have defined a “Vector Search Index” on that field, the collection is monitored automatically to build and update the index based on new documents being created or documents being removed from your collection.
Is there a specific question or concern you have around the service?
Best,