Hey Man it’s because of Mongo 4.x update where we no longer have ops instead of that we can do something like this after insert.
const result = await db.collection('Users').insertOne(newUser);
const someId = result.insertedId;
InsertId and acknowledgement are the only response we get from the db.
you have to run another db query here
const actualResult = await db
.collection('Users')
.findOne({ _id: someId });
and if you do console log you will get the inserted document
Happy Coding