[{_id:ObjectId("62641aea1fbe19349f8fba78"),text:"Hello",user:ObjectId("625b8f00e2464fb758263b4d"),receiver:ObjectId("62638d3e5bcd98e7e48ca1b7"),createdAt:"2022-04-23T15:27:38.270Z",updatedAt:"2022-04-23T15:27:38.270Z",__v:0},{_id:ObjectId("6264256fc0ee5093f8d994a0"),text:"Hi",user:ObjectId("62638f1495b841266161b032"),receiver:ObjectId("62638d3e5bcd98e7e48ca1b7"),createdAt:"2022-04-23T16:12:31.155Z",updatedAt:"2022-04-23T16:12:31.155Z",__v:0},{_id:ObjectId("62642dc05318104caabbdecc"),text:"Hi",user:ObjectId("625b8f00e2464fb758263b4d"),receiver:ObjectId("62638d3e5bcd98e7e48ca1b7"),createdAt:"2022-04-23T16:48:00.416Z",updatedAt:"2022-04-23T16:48:00.416Z",__v:0}]

db.collection.aggregate([{$match:{$or:[{user:ObjectId("62638d3e5bcd98e7e48ca1b7")},{receiver:ObjectId("62638d3e5bcd98e7e48ca1b7")}]}},{"$group":{"_id":{user:"$user",receiver:"$receiver"}}},{"$replaceRoot":{"newRoot":"$_id"}}])