How to automate replacement of ObjectId with document?

Question

MongoDB

const EmbeddedInformationSchema = Schema({
    description: String
});
const UserSchema = Schema({
    informations: [EmbeddedInformationSchema]
})
const EmbeddedInformation = mongoose.model('EmbeddedInformation', EmbeddedInformationSchema);
const User = mongoose.model('User', UserSchema);

const run = async ()=>{
    await mongoose.connect('mongodb://localhost/test');
    await mongoose.connection.db.dropDatabase();

    await EmbeddedInformation.create({description: 'a'});
    await EmbeddedInformation.create({description: 'b'});

    let informationAll = await EmbeddedInformation.find();

    let user = await User.create({informations: informationAll.map(item=>item._id)});

    console.log(user); 
}

run().catch(console.error)

How can I automate document embedding so that the following is displayed in the console?

{informations: [{description: 'a'}, {description: 'b'}]}

And most importantly, I only need to replace documents when EmbeddedInformation is stored exactly in User.
Also, I know how to do it with the logic in the hooks, but maybe there is a way to specify it at the topic level or when calling methods (save, create..)?