[{_id:ObjectId("636d40818b6adc8d4fecb56b"),amount:95,address:"UK",createdAt:ISODate("2022-12-17T18:18:41.049+00:00")},{_id:ObjectId("636d40818b6adc8d4fecb56c"),amount:95,address:"UK",createdAt:ISODate("2022-12-17T18:18:41.049+00:00")},{_id:ObjectId("636d40818b6adc8d4fecb56d"),amount:95,address:"UK",createdAt:ISODate("2022-11-17T18:18:41.049+00:00")},{_id:ObjectId("636d40818b6adc8d4fecb56e"),amount:95,address:"UK",createdAt:ISODate("2023-01-17T18:18:41.049+00:00")}]

db.collection.aggregate([{$addFields:{prevMonth:ISODate("2022-12-24T03:18:48.029Z"),lastMonth:ISODate("2023-01-24T03:18:48.029Z")}},{$match:{$expr:{$or:[/** prevMonth*/{$and:[{$eq:[{$year:"$createdAt"},{$year:"$prevMonth"}]},{$eq:[{$month:"$createdAt"},{$month:"$prevMonth"}]}]},/** lastMonth*/{$and:[{$eq:[{$year:"$createdAt"},{$year:"$lastMonth"}]},{$eq:[{$month:"$createdAt"},{$month:"$lastMonth"}]}]},]}}},{$unset:["lastMonth","prevMonth"]}])