Database
db={"collection":[{_id:1,email:"test@test.com"}],"response":[{_id:"63515eea05c8c884a33b291d",user:1,resId:"632f2d8e470895396dccefdb",status:"IN_PROGRESS"},{_id:"6385ee9f451fa8879071bcde",user:1,resId:"63771adafa3b611596aaa15d",status:"CREATED"}]}
Query
db.collection.aggregate([{$lookup:{from:"response",localField:"_id",foreignField:"user",as:"dataResponse",pipeline:[{$project:{resId:1,status:1}}]}},{"$addFields":{"dataResponse":{"$arrayToObject":{"$map":{"input":"$dataResponse","in":{k:"$$this.resId",v:"$$this.status"}}}}}}])