https://www.mongodb.com/docs/manual/tutorial/update-documents-with-aggregation-pipeline/
https://www.mongodb.com/docs/manual/reference/command/nav-crud/

coll
  .insertOne({...})
  .insertMany([...])
  .update,
  .updateOne({"field": "...", ...}, [agg-pipeline])
      https://www.mongodb.com/docs/manual/tutorial/update-documents-with-aggregation-pipeline/
      $set: {"otherField": "otherVal"}
  .updateMany
  .replaceOne
  .queryAndWrite(...)
  .deleteOne
  .deleteMany
  .remove({filer})

from-java-driver
  https://www.mongodb.com/docs/drivers/java/sync/current/fundamentals/builders/updates/

2022
https://www.fosslinux.com/49919/update-existing-documents-mongodb.htm

bulk
https://www.mongodb.com/docs/drivers/java/sync/current/fundamentals/crud/write-operations/bulk/